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## isWeakMap + [link](./isWeakMap "Link to this entry.") + [source](https://github.com/lodash/lodash/blob/4.5.0正式版/lodash.src.js#L10371 "View in source.") + [npm](https://www.npmjs.com/package/lodash.isweakmap "See the npm package.") ``` _.isWeakMap(value) ``` 检查 `value` 是否是 `WeakMap` 对象 ### 参数 1. value (\*) 要检查的值 ### 返回值 (boolean) 如果是正确的类型,返回 `true`,否则返回 `false` ### 示例 ``` _.isWeakMap(new WeakMap); // => true _.isWeakMap(new Map); // => false ```