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Merge pull request #954 from skatcat31/skatcat31-isEmpty

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Maps and Sets are not collections, but Stores
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Angelos Chalaris
2019-04-13 10:35:50 +03:00
committed by GitHub
parent 14d31fa3a9 c314f78e63
commit d6f31cc418
1 changed files with 1 additions and 3 deletions
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snippets/isEmpty.md
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@ -1,6 +1,6 @@
### isEmpty ### isEmpty
Returns true if the a value is an empty object, collection, map or set, has no enumerable properties or is any type that is not considered a collection. Returns true if the a value is an empty object, collection, has no enumerable properties or is any type that is not considered a collection.
Check if the provided value is `null` or if its `length` is equal to `0`. Check if the provided value is `null` or if its `length` is equal to `0`.
@ -9,8 +9,6 @@ const isEmpty = val => val == null || !(Object.keys(val) || val).length;
``` ```
```js ```js
isEmpty(new Map()); // true
isEmpty(new Set()); // true
isEmpty([]); // true isEmpty([]); // true
isEmpty({}); // true isEmpty({}); // true
isEmpty(''); // true isEmpty(''); // true