push
And pop
Examples¶push
¶The general syntax for this method is:
arrayName.push(item1, item2, ...)
This method adds one or more items to the END of an array and returns the new length.
The new items may be of any data type.
Example
1let arr = ['a', 'b', 'c'];
2
3console.log(arr.push('d', 'f', 42));
4
5console.log(arr);
Output
6
['a', 'b', 'c', 'd', 'f', 42]
pop
¶The general syntax for this method is:
arrayName.pop()
This method removes and returns the LAST element in an array.
No arguments are placed inside the parentheses ()
.
Example
1let arr = ['a', 'b', 'c', 'd', 'e'];
2
3arr.pop();
4
5console.log(arr);
Output
e
['a', 'b', 'c', 'd']