frankiehayward
12/5/2019 - 11:15 PM

isArrayLike

This snippet can be used to check if a provided argument is iterable like an array.

is_array_like.js
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const isArrayLike = obj => obj != null && typeof obj[Symbol.iterator] === 'function';

isArrayLike(document.querySelectorAll('.className')); // true
isArrayLike('abc'); // true
isArrayLike(null); // false