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13 lines
395 B
13 lines
395 B
var has = require('./has');
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exports = function(fn, hashFn) {
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var memoize = function(key) {
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var cache = memoize.cache;
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var address = '' + (hashFn ? hashFn.apply(this, arguments) : key);
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if (!has(cache, address)) cache[address] = fn.apply(this, arguments);
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return cache[address];
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};
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memoize.cache = {};
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return memoize;
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};
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module.exports = exports;
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