Use for loop to get count array elements in JavaScript. Let’s see HTML example code:-
Count certain elements in Array
<!DOCTYPE HTML>
<html>
<body>
<script>
var arr = [1, 2, 3, 5, 2, 8, 9, 2];
var count = 0;
for(var i = 0; i < arr.length; ++i){
if(arr[i] == 2)
count++;
}
console.log(count);
</script>
</body>
</html> Output:
Use JavaScript array length property returns get count of total elements in the Array.
Get number of elements in an array.
<!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: 8
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