JavaScript Array count | Get the Array length example

Use length property to get Array count in JavaScript. A length property also used to iterate through by looking at the length property and Create an empty array of fixed lengths, etc.

Example count Array in JavaScript

HTML example code:

<!DOCTYPE HTML> 
<html> 
<body> 

	<script>
		var arr = [1, 2, 3, 5, 2, 8, 9, 2];

		var count = arr.length;
		
		console.log(count);
	</script> 
</body> 
</html>	

Output:

JavaScript Array count example code

Q: How to count certain elements in Array?

Answer: Let’s find how many 2s are in the Array:-

An array:

[1, 2, 3, 5, 2, 8, 9, 2]

It’s very simple with a for loop, match given item with all elements of Array and count it:

Output: 3

Do comment if you have any doubts and suggestions on this JS Array topic.

Note: The All JS Examples codes are tested on the Firefox browser and the Chrome browser.

OS: Windows 10

Code: HTML 5 Version


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