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28 lines
631 B
28 lines
631 B
var getTag = require('./_getTag'), |
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isObjectLike = require('./isObjectLike'); |
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/** `Object#toString` result references. */ |
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var weakMapTag = '[object WeakMap]'; |
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/** |
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* Checks if `value` is classified as a `WeakMap` object. |
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* |
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* @static |
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* @memberOf _ |
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* @since 4.3.0 |
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* @category Lang |
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* @param {*} value The value to check. |
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* @returns {boolean} Returns `true` if `value` is a weak map, else `false`. |
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* @example |
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* |
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* _.isWeakMap(new WeakMap); |
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* // => true |
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* |
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* _.isWeakMap(new Map); |
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* // => false |
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*/ |
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function isWeakMap(value) { |
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return isObjectLike(value) && getTag(value) == weakMapTag; |
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} |
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module.exports = isWeakMap;
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