Array tail

JavaScript, Array · Oct 22, 2020

Returns all elements in an array except for the first one.

Use Array.prototype.slice()to return the array without the first element if Array.prototype.length is more than 1.
Otherwise, return the whole array.

const tail = arr => (arr.length > 1 ? arr.slice(1) : arr);

tail([1, 2, 3]); // [2, 3]
tail([1]); // [1]

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