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65 lines
1.7 KiB
65 lines
1.7 KiB
2 years ago
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var Class = require('./Class');
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var root = require('./root');
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var defineProp = require('./defineProp');
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var keys = require('./keys');
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var each = require('./each');
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var isArr = require('./isArr');
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var isUndef = require('./isUndef');
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if (root.Map && !false) {
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exports = root.Map;
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} else {
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exports = Class({
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initialize: function PseudoMap(data) {
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this.clear();
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var self = this;
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defineProp(this, 'size', {
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get: function() {
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return keys(self._data).length;
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},
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set: function() {},
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enumerable: true,
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configurable: true
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});
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if (data instanceof exports) {
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data.forEach(function(val, key) {
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this.set(key, val);
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}, this);
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} else if (isArr(data)) {
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each(
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data,
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function(val) {
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this.set(val[0], val[1]);
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},
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this
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);
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}
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},
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forEach: function(fn, ctx) {
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each(
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this._data,
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function(val, key) {
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fn.call(this, val, key);
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},
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ctx
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);
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},
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has: function(key) {
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return !isUndef(this._data[key]);
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},
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get: function(key) {
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return this._data[key];
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},
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set: function(key, val) {
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this._data[key] = val;
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},
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delete: function(key) {
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delete this._data[key];
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},
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clear: function() {
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this._data = {};
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}
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});
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}
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module.exports = exports;
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