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29 lines
631 B
29 lines
631 B
1 year ago
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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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