Below is the example of Array pop() method.
- Example:
<script>
function
func() {
var
arr = [
'GFG'
,
'gfg'
,
'g4g'
,
'GeeksforGeeks'
];
// Popping the last element from the array
document.write(arr.pop());
}
func();
</script>
- Output:
GeeksforGeeks
The arr.pop() method is used to remove the last element of the array and also returns the removed element. This function decreases the length of the array by 1.
Syntax:
arr.pop()
Parameters: This method does not accept any parameter.
Return value This method returns the removed element array. If the array is empty, then this function returns undefined.
Below examples illustrate the JavaScript Array pop() method:
- Example 1: In this example the pop() method removes the last element from the array, which is 4 and returns it.
var arr = [34, 234, 567, 4]; var popped = arr.pop(); print(popped); print(arr);
Output:
4 34,234,567
- Example 2: In this example the function pop() tries to extract the last element of the array but since the array is empty therefore it returns undefined as the answer.
var arr = []; var popped = arr.pop(); print(popped);
Output:
undefined
More example codes for the above method are as follows:
Program 1:
<script> function func() { var arr = [34, 234, 567, 4]; // Popping the last element from the array var popped = arr.pop(); document.write(popped); document.write( "<br>" ); document.write(arr); } func(); </script> |
Output:
4 34,234,567
Program 2:
<script> function func() { var arr = []; // popping the last element var popped = arr.pop(); document.write(popped); } func(); </script> |
Output:
undefined
Supported Browsers: The browsers supported by JavaScript Array pop() method are listed below:
- Google Chrome 1.0
- Microsoft Edge 5.5
- Mozilla Firefox 1.0
- Safari
- Opera