Array without last element

OSCC · JavaScript, Array · Nov 3, 2020

Returns all the elements of an array except the last one.

• Use Array.prototype.slice() to return all but the last element of the array.

const initial = arr => arr.slice(0, -1);

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

Recommended snippets

• Execute function for each array element in reverse

  JavaScript, Array

  Executes a provided function once for each array element, starting from the array's last element.

• Filter out matching array elements

  JavaScript, Array

  Filters out the elements of an array that have one of the specified values.

• Array tail

  JavaScript, Array

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