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36 lines
775 B
36 lines
775 B
3 years ago
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var assocIndexOf = require('./_assocIndexOf');
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/** Used for built-in method references. */
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var arrayProto = Array.prototype;
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/** Built-in value references. */
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var splice = arrayProto.splice;
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/**
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* Removes `key` and its value from the list cache.
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*
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* @private
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* @name delete
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* @memberOf ListCache
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* @param {string} key The key of the value to remove.
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* @returns {boolean} Returns `true` if the entry was removed, else `false`.
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*/
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function listCacheDelete(key) {
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var data = this.__data__,
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index = assocIndexOf(data, key);
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if (index < 0) {
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return false;
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}
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var lastIndex = data.length - 1;
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if (index == lastIndex) {
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data.pop();
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} else {
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splice.call(data, index, 1);
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}
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--this.size;
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return true;
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}
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module.exports = listCacheDelete;
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