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Update isArrayLike.md

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Angelos Chalaris
2018-01-01 14:45:17 +02:00
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commit 175388ca56
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snippets/isArrayLike.md
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@ -2,15 +2,13 @@
Checks if the provided argument is array-like (i.e. is iterable).
Check that the object is not a function or `null` and that its `length` property is a non-negative integer below `Number.MAX_SAFE_INTEGER`.
Use the spread operator (`...`) to check if the provided argument is iterable inside a `try... catch` block and the comma operator (`,`) to return the appropriate value.
```js
const isArrayLike = val =>
val != null &&
typeof val != 'function' &&
val.length > -1 &&
val.length % 1 == 0 &&
val.length <= Number.MAX_SAFE_INTEGER;
try {return [...val], true; }
catch (e) { return false; }
};
```
```js