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