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35 lines
853 B
JavaScript
35 lines
853 B
JavaScript
6 years ago
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var ListCache = require('./_ListCache'),
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Map = require('./_Map'),
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MapCache = require('./_MapCache');
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/** Used as the size to enable large array optimizations. */
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var LARGE_ARRAY_SIZE = 200;
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/**
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* Sets the stack `key` to `value`.
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*
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* @private
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* @name set
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* @memberOf Stack
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* @param {string} key The key of the value to set.
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* @param {*} value The value to set.
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* @returns {Object} Returns the stack cache instance.
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*/
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function stackSet(key, value) {
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var data = this.__data__;
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if (data instanceof ListCache) {
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var pairs = data.__data__;
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if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) {
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pairs.push([key, value]);
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this.size = ++data.size;
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return this;
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}
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data = this.__data__ = new MapCache(pairs);
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}
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data.set(key, value);
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this.size = data.size;
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return this;
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}
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module.exports = stackSet;
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