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Drop list elements from the right
JavaScript, Array · Nov 1, 2020
Creates a new array with n elements removed from the right.
- Use
Array.prototype.slice()to remove the specified number of elements from the right. - Omit the last argument,
n, to use a default value of1.
const dropRight = (arr, n = 1) => arr.slice(0, -n);dropRight([1, 2, 3]); // [1, 2]
dropRight([1, 2, 3], 2); // [1]
dropRight([1, 2, 3], 42); // []More like this
Drop list elements from the right based on function
JavaScript, Array
Removes elements from the end of an array until the passed function returns
true. Returns the remaining elements in the array.Drop list elements from the left
JavaScript, Array
Creates a new array with
nelements removed from the left.Remove list elements from the end
JavaScript, Array
Creates an array with
nelements removed from the end.