unshift

The unshift() method adds one or more elements to the beginning of an array and returns the new length of the array.1

const names = ['Jack', 'Laura', 'Paul', 'Megan'];
names.unshift('Jill'); // => 5
names;
// => ['Jill', 'Jack', 'Laura', 'Paul', 'Megan']

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Footnotes

1. unshift, MDN. https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/unshift˄

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Backlinks

• Array Methods