22 lines
499 B
Markdown
22 lines
499 B
Markdown
### isArrayLike
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Checks if the provided argument is array-like (i.e. is iterable).
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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.
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```js
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const isArrayLike = val => {
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try {
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return [...val], true;
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} catch (e) {
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return false;
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}
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};
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```
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```js
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isArrayLike(document.querySelectorAll('.className')); // true
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isArrayLike('abc'); // true
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isArrayLike(null); // false
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```
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