Use .unshift() to add elements into front of JavaScript array. The unshift method modifies the existing array by adding the arguments to the beginning. It Most efficient way to prepend a value to an array in JS.
Example of JavaScript array add to the front
Let’s Add new items to the beginning of an array in JavaScript.
Note: This way will changes the length of an array.
<!DOCTYPE html>
<html>
<body>
<script type="text/javascript">
var alpha = ["A", "O", "C", "D"];
alpha.unshift("E","B");
alert(alpha);
</script>
</body>
</html>Output:
Q: How to add new items at the end of an array in JavaScript?
Answer: Use the push() method to add element in the last of JS array.
Read More:- JavaScript array push | method | Add an element to the array
FYI:-
unshift/push– add an element to the beginning/end of an arrayshift/pop– remove and return the first/last element of an array
Do comment if you know another way or example. You can post your questions and doubts also.
Note: The All JS Examples codes are tested on the Firefox browser and the Chrome browser.
OS: Windows 10
Code: HTML 5 Version