You can use the substring or slice method to Get the first n characters of a string in JavaScript. Where n could be any number 1,2,3… so on.
Get first n characters of string JavaScript Examples
HTML examples code: Let’s get the first 4 char from a string in JS.
Using substring() Method:
<!DOCTYPE HTML>
<html>
<body>
<script>
var str = "HELLO WORLD";
var res = str.substring(0, 4);
alert(res);
</script>
</body>
</html>
Using slice() Method:
<!DOCTYPE HTML>
<html>
<body>
<script>
var str = "HELLO WORLD";
var res = str.slice(0,4);
alert(res);
</script>
</body>
</html>
Output: Result will be the same because the given string and get number char length is the same.
![Get first n characters of string JavaScript](https://i0.wp.com/tutorial.eyehunts.com/wp-content/uploads/2021/04/Get-first-n-characters-of-string-JavaScript.jpg?resize=311%2C190&ssl=1)
Do comment if you have any doubts and suggestions on this JS topic.
Note: The All JS Examples codes are tested on the Firefox browser and the Chrome browser.
OS: Windows 10
Code: HTML 5 Version