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How to add new value to an existing array in JavaScript?
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
Updated on 18-Jun-2020 08:22:28
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