How to use the pop () method of javascript

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Pop () method in javascript

What: the pop () method is used to delete and return the last element of the array.

Basic syntax:

ArrayObject.pop ()

Note: the pop () method changes the length of the array.

Description: the pop () method deletes the last element of arrayObject, subtracts the array length by 1, and returns the value of the element it deleted. If the array is already empty, pop () does not change the array and returns an undefined value.

An example of using the javascriptpop () method

Php Chinese website (php.cn)

Vararr=newArray (3)

Arr [0] = "PHP"

Arr [1] = "Javascript"

Arr [2] = "MySQL"

Arr [3] = "Python"

[xss_clean] ("original array:" + arr)

[xss_clean] (")

[xss_clean] ("deleted element:" + arr.pop ())

[xss_clean] (")

[xss_clean] ("New array:" + arr)

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