JavaScript Array method: unshift()
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The unshift() method (when applied to a JavaScript
array) adds
new elements to the beginning of the array.
It
has the following syntax with the following parameters. It returns a number,
representing the new length of the array.
array.unshift(item1, item2, …)
|
Parameter
|
Required / Optional
|
Description
|
|
item1, item2, …
|
Required
|
New item(s) to be added
to the array
|
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