JavaScript Tutorial

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Javascript Replace Underscore with Space and Capitalize

In this tutorial, you will learn how to use JavaScript to manipulate strings, such as replacing certain characters or changing the case. For example, you may want to replace underscores with spaces and capitalize each word in a string, or remove underscores from a string and capitalize the first letter.

To do this, you can use the replace() method, which takes a regular expression (regex) as the first argument and a replacement string or function as the second argument. In this tutorial, we will show you how to use the replace() method and regex to perform these string transformations in JavaScript.

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How to Replace Underscore with Space and Capitalize First Letter in javascript?

In this example, we use the JavaScript replace function and regex to remove or replace underscores with space and capitalize the first letter of the string

Javascript Replace underscores with spaces and capitalize words

 <script>
   function replaceUnderscoresAndCapitalize(str) {
     str = str.replace(/_/g, " ");
     str = str.replace(/\b\w/g, function(match) {
       return match.toUpperCase();
     });
     return str;
   }
 </script>

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JavaScript Tutorial

Javascript Replace Underscore with Space and Capitalize

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How to Replace Underscore with Space and Capitalize First Letter in javascript?

Javascript Replace underscores with spaces and capitalize words

Output of Javascript Replace all underscores with spaces