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Array push() method with example in JavaScript

JavaScript push() method: Here, we are going to learn about the push() method of array in JavaScript.
Submitted by IncludeHelp, on February 27, 2019

JavaScript push() method

push() method is used adds/inserts an element at the end of an array, it returns nothing but changes the length of the array.

Syntax

array_name.push(element1, element2, ...);

It accepts one or more than one elements and inserts to the end of the array and changed the length of an array.

Sample Input/Output

Input:
var countries = ["INDIA", "USA"];

Function call:
countries.push("UK");
countries.push("CANADA", "RUSSIA");
    
Output:
"INDIA", "USA", "UK", "CANADA", "RUSSIA"

JavaScript Code to demonstrate example of Array.push() method

<html>
<head>
<title>JavaScipt Example</title>
</head>

<body>
	<script>
		var countries = ["INDIA", "USA"];
		document.write("countries: " + countries + "<br>");
		document.write("length is: " + countries.length + "<br>");
		
		//adding one element
		countries.push("UK");
		document.write("countries: " + countries + "<br>");
		document.write("length is: " + countries.length + "<br>");
		
		//adding two elements
		countries.push("CANADA", "RUSSIA");
		document.write("countries: " + countries + "<br>");
		document.write("length is: " + countries.length + "<br>");		
		
	</script>
</body>
</html>

Output

countries: INDIA,USA
length is: 2
countries: INDIA,USA,UK
length is: 3
countries: INDIA,USA,UK,CANADA,RUSSIA
length is: 5