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547 lines
16 KiB
547 lines
16 KiB
/**
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* Promise, or maybe not
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*/
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type Awaitable<T> = T | PromiseLike<T>;
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/**
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* Null or whatever
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*/
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type Nullable<T> = T | null | undefined;
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/**
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* Array, or not yet
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*/
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type Arrayable<T> = T | Array<T>;
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/**
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* Function
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*/
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type Fn<T = void> = () => T;
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/**
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* Constructor
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*/
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type Constructor<T = void> = new (...args: any[]) => T;
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/**
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* Infers the element type of an array
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*/
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type ElementOf<T> = T extends (infer E)[] ? E : never;
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/**
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* Defines an intersection type of all union items.
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*
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* @param U Union of any types that will be intersected.
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* @returns U items intersected
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* @see https://stackoverflow.com/a/50375286/9259330
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*/
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type UnionToIntersection<U> = (U extends unknown ? (k: U) => void : never) extends ((k: infer I) => void) ? I : never;
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/**
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* Infers the arguments type of a function
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*/
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type ArgumentsType<T> = T extends ((...args: infer A) => any) ? A : never;
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type MergeInsertions<T> = T extends object ? {
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[K in keyof T]: MergeInsertions<T[K]>;
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} : T;
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type DeepMerge<F, S> = MergeInsertions<{
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[K in keyof F | keyof S]: K extends keyof S & keyof F ? DeepMerge<F[K], S[K]> : K extends keyof S ? S[K] : K extends keyof F ? F[K] : never;
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}>;
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/**
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* Convert `Arrayable<T>` to `Array<T>`
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*
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* @category Array
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*/
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declare function toArray<T>(array?: Nullable<Arrayable<T>>): Array<T>;
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/**
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* Convert `Arrayable<T>` to `Array<T>` and flatten it
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*
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* @category Array
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*/
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declare function flattenArrayable<T>(array?: Nullable<Arrayable<T | Array<T>>>): Array<T>;
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/**
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* Use rest arguments to merge arrays
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*
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* @category Array
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*/
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declare function mergeArrayable<T>(...args: Nullable<Arrayable<T>>[]): Array<T>;
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type PartitionFilter<T> = (i: T, idx: number, arr: readonly T[]) => any;
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/**
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* Divide an array into two parts by a filter function
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*
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* @category Array
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* @example const [odd, even] = partition([1, 2, 3, 4], i => i % 2 != 0)
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*/
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declare function partition<T>(array: readonly T[], f1: PartitionFilter<T>): [T[], T[]];
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declare function partition<T>(array: readonly T[], f1: PartitionFilter<T>, f2: PartitionFilter<T>): [T[], T[], T[]];
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declare function partition<T>(array: readonly T[], f1: PartitionFilter<T>, f2: PartitionFilter<T>, f3: PartitionFilter<T>): [T[], T[], T[], T[]];
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declare function partition<T>(array: readonly T[], f1: PartitionFilter<T>, f2: PartitionFilter<T>, f3: PartitionFilter<T>, f4: PartitionFilter<T>): [T[], T[], T[], T[], T[]];
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declare function partition<T>(array: readonly T[], f1: PartitionFilter<T>, f2: PartitionFilter<T>, f3: PartitionFilter<T>, f4: PartitionFilter<T>, f5: PartitionFilter<T>): [T[], T[], T[], T[], T[], T[]];
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declare function partition<T>(array: readonly T[], f1: PartitionFilter<T>, f2: PartitionFilter<T>, f3: PartitionFilter<T>, f4: PartitionFilter<T>, f5: PartitionFilter<T>, f6: PartitionFilter<T>): [T[], T[], T[], T[], T[], T[], T[]];
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/**
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* Unique an Array
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*
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* @category Array
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*/
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declare function uniq<T>(array: readonly T[]): T[];
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/**
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* Unique an Array by a custom equality function
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*
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* @category Array
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*/
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declare function uniqueBy<T>(array: readonly T[], equalFn: (a: any, b: any) => boolean): T[];
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/**
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* Get last item
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*
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* @category Array
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*/
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declare function last(array: readonly []): undefined;
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declare function last<T>(array: readonly T[]): T;
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/**
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* Remove an item from Array
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*
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* @category Array
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*/
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declare function remove<T>(array: T[], value: T): boolean;
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/**
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* Get nth item of Array. Negative for backward
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*
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* @category Array
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*/
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declare function at(array: readonly [], index: number): undefined;
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declare function at<T>(array: readonly T[], index: number): T;
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/**
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* Genrate a range array of numbers. The `stop` is exclusive.
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*
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* @category Array
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*/
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declare function range(stop: number): number[];
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declare function range(start: number, stop: number, step?: number): number[];
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/**
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* Move element in an Array
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*
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* @category Array
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* @param arr
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* @param from
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* @param to
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*/
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declare function move<T>(arr: T[], from: number, to: number): T[];
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/**
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* Clamp a number to the index ranage of an array
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*
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* @category Array
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*/
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declare function clampArrayRange(n: number, arr: readonly unknown[]): number;
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/**
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* Get random items from an array
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*
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* @category Array
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*/
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declare function sample<T>(arr: T[], count: number): T[];
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/**
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* Shuffle an array. This function mutates the array.
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*
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* @category Array
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*/
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declare function shuffle<T>(array: T[]): T[];
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declare const assert: (condition: boolean, message: string) => asserts condition;
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declare const toString: (v: any) => string;
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declare const getTypeName: (v: any) => string;
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declare const noop: () => void;
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/**
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* Type guard to filter out null-ish values
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*
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* @category Guards
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* @example array.filter(notNullish)
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*/
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declare function notNullish<T>(v: T | null | undefined): v is NonNullable<T>;
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/**
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* Type guard to filter out null values
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*
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* @category Guards
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* @example array.filter(noNull)
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*/
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declare function noNull<T>(v: T | null): v is Exclude<T, null>;
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/**
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* Type guard to filter out null-ish values
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*
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* @category Guards
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* @example array.filter(notUndefined)
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*/
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declare function notUndefined<T>(v: T): v is Exclude<T, undefined>;
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/**
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* Type guard to filter out falsy values
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*
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* @category Guards
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* @example array.filter(isTruthy)
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*/
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declare function isTruthy<T>(v: T): v is NonNullable<T>;
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declare const isDef: <T = any>(val?: T | undefined) => val is T;
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declare const isBoolean: (val: any) => val is boolean;
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declare const isFunction: <T extends Function>(val: any) => val is T;
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declare const isNumber: (val: any) => val is number;
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declare const isString: (val: unknown) => val is string;
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declare const isObject: (val: any) => val is object;
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declare const isUndefined: (val: any) => val is undefined;
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declare const isNull: (val: any) => val is null;
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declare const isRegExp: (val: any) => val is RegExp;
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declare const isDate: (val: any) => val is Date;
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declare const isWindow: (val: any) => boolean;
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declare const isBrowser: boolean;
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declare function clamp(n: number, min: number, max: number): number;
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declare function sum(...args: number[] | number[][]): number;
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/**
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* Replace backslash to slash
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*
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* @category String
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*/
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declare function slash(str: string): string;
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/**
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* Ensure prefix of a string
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*
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* @category String
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*/
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declare function ensurePrefix(prefix: string, str: string): string;
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/**
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* Ensure suffix of a string
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*
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* @category String
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*/
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declare function ensureSuffix(suffix: string, str: string): string;
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/**
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* Dead simple template engine, just like Python's `.format()`
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*
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* @category String
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* @example
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* ```
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* const result = template(
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* 'Hello {0}! My name is {1}.',
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* 'Inès',
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* 'Anthony'
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* ) // Hello Inès! My name is Anthony.
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* ```
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*/
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declare function template(str: string, ...args: any[]): string;
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/**
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* Generate a random string
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* @category String
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*/
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declare function randomStr(size?: number, dict?: string): string;
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/**
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* First letter uppercase, other lowercase
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* @category string
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* @example
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* ```
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* capitalize('hello') => 'Hello'
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* ```
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*/
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declare function capitalize(str: string): string;
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declare const timestamp: () => number;
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/**
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* Call every function in an array
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*/
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declare function batchInvoke(functions: Nullable<Fn>[]): void;
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/**
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* Call the function
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*/
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declare function invoke(fn: Fn): void;
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/**
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* Pass the value through the callback, and return the value
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*
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* @example
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* ```
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* function createUser(name: string): User {
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* return tap(new User, user => {
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* user.name = name
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* })
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* }
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* ```
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*/
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declare function tap<T>(value: T, callback: (value: T) => void): T;
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/**
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* Map key/value pairs for an object, and construct a new one
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*
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*
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* @category Object
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*
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* Transform:
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* @example
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* ```
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* objectMap({ a: 1, b: 2 }, (k, v) => [k.toString().toUpperCase(), v.toString()])
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* // { A: '1', B: '2' }
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* ```
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*
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* Swap key/value:
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* @example
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* ```
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* objectMap({ a: 1, b: 2 }, (k, v) => [v, k])
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* // { 1: 'a', 2: 'b' }
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* ```
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*
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* Filter keys:
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* @example
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* ```
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* objectMap({ a: 1, b: 2 }, (k, v) => k === 'a' ? undefined : [k, v])
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* // { b: 2 }
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* ```
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*/
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declare function objectMap<K extends string, V, NK = K, NV = V>(obj: Record<K, V>, fn: (key: K, value: V) => [NK, NV] | undefined): Record<K, V>;
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/**
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* Type guard for any key, `k`.
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* Marks `k` as a key of `T` if `k` is in `obj`.
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*
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* @category Object
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* @param obj object to query for key `k`
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* @param k key to check existence in `obj`
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*/
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declare function isKeyOf<T extends object>(obj: T, k: keyof any): k is keyof T;
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/**
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* Strict typed `Object.keys`
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*
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* @category Object
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*/
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declare function objectKeys<T extends object>(obj: T): (`${keyof T & undefined}` | `${keyof T & null}` | `${keyof T & string}` | `${keyof T & number}` | `${keyof T & false}` | `${keyof T & true}`)[];
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/**
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* Strict typed `Object.entries`
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*
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* @category Object
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*/
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declare function objectEntries<T extends object>(obj: T): [keyof T, T[keyof T]][];
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/**
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* Deep merge :P
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*
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* @category Object
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*/
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declare function deepMerge<T extends object = object, S extends object = T>(target: T, ...sources: S[]): DeepMerge<T, S>;
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/**
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* Create a new subset object by giving keys
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*
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* @category Object
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*/
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declare function objectPick<O extends object, T extends keyof O>(obj: O, keys: T[], omitUndefined?: boolean): Pick<O, T>;
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/**
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* Clear undefined fields from an object. It mutates the object
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*
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* @category Object
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*/
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declare function clearUndefined<T extends object>(obj: T): T;
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/**
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* Determines whether an object has a property with the specified name
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*
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* @see https://eslint.org/docs/rules/no-prototype-builtins
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* @category Object
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*/
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declare function hasOwnProperty<T>(obj: T, v: PropertyKey): boolean;
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interface SingletonPromiseReturn<T> {
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(): Promise<T>;
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/**
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* Reset current staled promise.
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* Await it to have proper shutdown.
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*/
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reset: () => Promise<void>;
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}
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/**
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* Create singleton promise function
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*
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* @category Promise
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*/
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declare function createSingletonPromise<T>(fn: () => Promise<T>): SingletonPromiseReturn<T>;
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/**
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* Promised `setTimeout`
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*
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* @category Promise
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*/
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declare function sleep(ms: number, callback?: Fn<any>): Promise<void>;
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/**
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* Create a promise lock
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*
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* @category Promise
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* @example
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* ```
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* const lock = createPromiseLock()
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*
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* lock.run(async () => {
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* await doSomething()
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* })
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*
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* // in anther context:
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* await lock.wait() // it will wait all tasking finished
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* ```
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*/
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declare function createPromiseLock(): {
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run<T = void>(fn: () => Promise<T>): Promise<T>;
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wait(): Promise<void>;
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isWaiting(): boolean;
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clear(): void;
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};
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/**
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* Promise with `resolve` and `reject` methods of itself
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*/
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interface ControlledPromise<T = void> extends Promise<T> {
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resolve(value: T | PromiseLike<T>): void;
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reject(reason?: any): void;
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}
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/**
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* Return a Promise with `resolve` and `reject` methods
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*
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* @category Promise
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* @example
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* ```
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* const promise = createControlledPromise()
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*
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* await promise
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*
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* // in anther context:
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* promise.resolve(data)
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* ```
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*/
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declare function createControlledPromise<T>(): ControlledPromise<T>;
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// Type definitions for throttle-debounce 5.0
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interface CancelOptions {
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upcomingOnly?: boolean;
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}
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interface Cancel {
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cancel: (options?: CancelOptions) => void;
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}
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interface NoReturn<T extends (...args: any[]) => any> {
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(...args: Parameters<T>): void;
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}
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interface ThrottleOptions {
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noTrailing?: boolean;
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noLeading?: boolean;
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debounceMode?: boolean;
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}
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interface DebounceOptions {
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atBegin?: boolean;
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}
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type throttle<T extends (...args: any[]) => any> = NoReturn<T> & Cancel;
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/**
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* Throttle execution of a function. Especially useful for rate limiting
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* execution of handlers on events like resize and scroll.
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*
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* @param delay
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* A zero-or-greater delay in milliseconds. For event callbacks, values around
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* 100 or 250 (or even higher) are most useful.
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*
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* @param callback
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* A function to be executed after delay milliseconds. The `this` context and
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* all arguments are passed through, as-is, to `callback` when the
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* throttled-function is executed.
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*
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* @param options
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* An object to configure options.
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*
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* @param options.noTrailing
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* Optional, defaults to false. If noTrailing is true, callback will only execute
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* every `delay` milliseconds while the throttled-function is being called. If
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* noTrailing is false or unspecified, callback will be executed one final time
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* after the last throttled-function call. (After the throttled-function has not
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* been called for `delay` milliseconds, the internal counter is reset)
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*
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* @param options.noLeading
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* Optional, defaults to false. If noLeading is false, the first throttled-function
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* call will execute callback immediately. If noLeading is true, the first the
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* callback execution will be skipped. It should be noted that callback will never
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* executed if both noLeading = true and noTrailing = true.
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*
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* @param options.debounceMode If `debounceMode` is true (at begin), schedule
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* `callback` to execute after `delay` ms. If `debounceMode` is false (at end),
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* schedule `callback` to execute after `delay` ms.
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*
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* @return
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* A new, throttled, function.
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*/
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declare function throttle<T extends (...args: any[]) => any>(
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delay: number,
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callback: T,
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options?: ThrottleOptions,
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): throttle<T>;
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type debounce<T extends (...args: any[]) => any> = NoReturn<T> & Cancel;
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/**
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* Debounce execution of a function. Debouncing, unlike throttling,
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* guarantees that a function is only executed a single time, either at the
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* very beginning of a series of calls, or at the very end.
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*
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* @param delay
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* A zero-or-greater delay in milliseconds. For event callbacks, values around
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* 100 or 250 (or even higher) are most useful.
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*
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* @param callback
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* A function to be executed after delay milliseconds. The `this` context and
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* all arguments are passed through, as-is, to `callback` when the
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* debounced-function is executed.
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*
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* @param options
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* An object to configure options.
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*
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* @param options.atBegin
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* If atBegin is false or unspecified, callback will only be executed `delay`
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* milliseconds after the last debounced-function call. If atBegin is true,
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* callback will be executed only at the first debounced-function call. (After
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* the throttled-function has not been called for `delay` milliseconds, the
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* internal counter is reset).
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*
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* @return
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* A new, debounced function.
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*/
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declare function debounce<T extends (...args: any[]) => any>(
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delay: number,
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callback: T,
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options?: DebounceOptions,
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): debounce<T>;
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interface POptions {
|
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/**
|
|
* How many promises are resolved at the same time.
|
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*/
|
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concurrency?: number | undefined;
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}
|
|
declare class PInstance<T = any> extends Promise<Awaited<T>[]> {
|
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items: Iterable<T>;
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options?: POptions | undefined;
|
|
private promises;
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get promise(): Promise<Awaited<T>[]>;
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constructor(items?: Iterable<T>, options?: POptions | undefined);
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add(...args: (T | Promise<T>)[]): void;
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map<U>(fn: (value: Awaited<T>, index: number) => U): PInstance<Promise<U>>;
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filter(fn: (value: Awaited<T>, index: number) => boolean | Promise<boolean>): PInstance<Promise<T>>;
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forEach(fn: (value: Awaited<T>, index: number) => void): Promise<void>;
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reduce<U>(fn: (previousValue: U, currentValue: Awaited<T>, currentIndex: number, array: Awaited<T>[]) => U, initialValue: U): Promise<U>;
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clear(): void;
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then(fn?: () => PromiseLike<any>): Promise<any>;
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catch(fn?: (err: unknown) => PromiseLike<any>): Promise<any>;
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finally(fn?: () => void): Promise<Awaited<T>[]>;
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}
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/**
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* Utility for managing multiple promises.
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*
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* @see https://github.com/antfu/utils/tree/main/docs/p.md
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* @category Promise
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* @example
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* ```
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* import { p } from '@antfu/utils'
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*
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* const items = [1, 2, 3, 4, 5]
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*
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* await p(items)
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* .map(async i => await multiply(i, 3))
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* .filter(async i => await isEven(i))
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* // [6, 12]
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* ```
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*/
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declare function p<T = any>(items?: Iterable<T>, options?: POptions): PInstance<T>;
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export { ArgumentsType, Arrayable, Awaitable, Constructor, ControlledPromise, DeepMerge, ElementOf, Fn, MergeInsertions, Nullable, PartitionFilter, SingletonPromiseReturn, UnionToIntersection, assert, at, batchInvoke, capitalize, clamp, clampArrayRange, clearUndefined, createControlledPromise, createPromiseLock, createSingletonPromise, debounce, deepMerge, ensurePrefix, ensureSuffix, flattenArrayable, getTypeName, hasOwnProperty, invoke, isBoolean, isBrowser, isDate, isDef, isFunction, isKeyOf, isNull, isNumber, isObject, isRegExp, isString, isTruthy, isUndefined, isWindow, last, mergeArrayable, move, noNull, noop, notNullish, notUndefined, objectEntries, objectKeys, objectMap, objectPick, p, partition, randomStr, range, remove, sample, shuffle, slash, sleep, sum, tap, template, throttle, timestamp, toArray, toString, uniq, uniqueBy };
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