Table of Contents
When you have strings in JavaScript, sometimes those strings will come with whitespace, which is just extra characters like spaces, tabs, and newlines.
When you want to get rid of these, you will need to strip them out.
In this post, we will look at how to strip whitespace from strings.
Strip Whitespace from Strings
When you want to strip whitespace from a string, you can use the trim()
method. This method lives natively on the String
object.
The trim()
method will remove all whitespace from the beginning and end of the string.
Let's see an example of this.
JAVASCRIPTconst string = " Hello World! ";
string.trim(); // "Hello World!"
Keep in mind that the trim()
method will only remove whitespace from the beginning and end of the string. It will not remove whitespace from the middle of the string.
JAVASCRIPTconst string = " Hello World! ";
string.trim(); // "Hello World!"
If you want to remove all spaces you can split the string into an array and then join it back together.
JAVASCRIPTconst string = " Hello World! ";
string.split(" ").join(""); // "HelloWorld!"
Another way you can remove all spaces is to use the replaceAll()
method.
JAVASCRIPTconst string = " Hello World! ";
string.replaceAll(" ", ""); // "HelloWorld!"
Conclusion
In this post, we've taken a look at all the ways you can strip whitespace from strings.
You have several options, including using the trim()
method, splitting the string into an array and then joining it back together, and the replaceAll()
method.
Hopefully, you've found this post useful. Happy coding!
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