unshift

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Subhajit Sahu edited this page Feb 2, 2021 · 22 revisions

Adds values to the start. 🏃 📼 📦 🌔 📒

Alternatives: unshift, unshift$.
Similar: push, pop, shift, unshift.

array.unshift(x, ...vs);
// x:  an array
// vs: values to add

const array = require('extra-array');

var x = [3, 4];
array.unshift(x, 2);
// [ 2, 3, 4 ]

array.unshift(x, 1, 2);
// [ 1, 2, 3, 4 ]

references