Array 'unshift' method in Javascript (Array.prototype.unshift)

Описание: Similar to the 'push' method, the 'unshift' method is used to add a new element to the very beginning of the Array, rather than the back as with 'push'. It also returns the new length of the array after the addition operation.

In this video see it in action.

For your reference:
https://developer.mozilla.org/en-US/d...

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