Deleting Items from an Array

In JavaScript Items can be deleted by using 2 JavaScript function which are pop() & shift().

Deleting a Item at the end of Array

pop() function are used to delete the last element of the array.

Let’s suppose we have a array as

var a = [A, B, C];

var b = a.pop();

now the result array will be a =  [A, B]. pop() function delete the last element from the array and  we can save the value of the deleted element like i did in above example. I have stored the deleted element  in variable b so now b contains the last element which is C.

Deleting Item at the beginning of Array

shift() function are used to delete the first element of the array.

Let’s suppose we have a array as

var a = [A, B, C];

var b = a.shift();

now the result array will be a =  [B, C]. shift() function delete the first element from the array and  in this case also we can save the value of the deleted element like i did in above example. I have stored the deleted element  in variable b so now b contains the last element which is A.

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