Sometimes, we want to add zeros to the beginning of a string (max length 4 chars) with JavaScript.
In this article, we’ll look at how to add zeros to the beginning of a string (max length 4 chars) with JavaScript.
How to add zeros to the beginning of a string (max length 4 chars) with JavaScript?
To add zeros to the beginning of a string (max length 4 chars) with JavaScript, we use the string padStart method.
For instance, we write
const padded = numberStr.padStart(4, "0");
to call padStart with 4 and '0' to return a string with the numberStr value prepended with 0’s until its length is 4.
Conclusion
To add zeros to the beginning of a string (max length 4 chars) with JavaScript, we use the string padStart method.
