How do I trim whitespace from a string in JavaScript?

How do I trim whitespace from a string in JavaScript?

You can use the trim() method to remove whitespace from both ends of a string. For example: let str = ' Hello World! '; str = str.trim();

Can I trim only the left or right side of the string?

Yes, you can use trimStart() to trim whitespace from the left side and trimEnd() for the right side.

What if I want to remove specific characters instead of whitespace?

You can use the replace() method with a regular expression to remove specific characters. For example: str.replace(/character/g, '');

Is there a way to trim strings in older versions of JavaScript?

In older versions, you can use substring() or slice() along with indexOf() and lastIndexOf() to manually trim strings.