How to add new value to an existing array in JavaScript?

Javascript Web Development Front End Technology

To add new value to an existing array, use the JavaScript splice() method.

Example

You can try to run the following code to add new value:

<html>
   <head>
      <title>JavaScript Array splice Method</title>
   </head>
   <body>
      <script>
         var arr = ["orange", "mango", "banana", "sugar", "tea"];
         document.write("Original array:"+arr)

         var newArr = arr.splice(2, 0, "water");
         document.write("<br>After adding new element: " + arr );
      </script>
   </body>
</html>

Output

Original array:orange,mango,banana,sugar,tea
After adding new element: orange,mango,water,banana,sugar,tea

Priya Pallavi

Published on 12-Feb-2018 17:46:01

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