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How To Capitalize Every Starting Letter Of A Word In A String JavaScript?

Do you want to capitalize each first letter of the word in a string using Vanilla JavaScript? Here is the little one-line function to make any string capitalised in one process.

There are many code snippets available online or on many other blogs and websites but everyone is not able to optimize your blog or website so you need some optimized code snippet. So now checkout out the code snippet for your blog and website that will give you all features for your desired code. Now grab the ready to use code and paste it where you want.


  1. Light Weight.
  2. Pure Vanilla JavaScript.
  3. Cross Browser.
  4. No External Files.
  5. Fully Customizable.
  6. Single Line Function.

How To Capitalize Every Starting Letter Of A Word In A String JavaScript?

There are a few easy and understandable steps to achieve your desired functionality using pure Vanilla JavaScript that we are gonna share below. Follow each step perfectly.


* Capitalize Every Starting Letter Of A Word
* @param arr {!Array} - the input array
* @param keys {Object} - object of sorting order and coloum name
* @return {Array}
const capitalizeEveryWord = str => str.replace(/\b[a-z]/g, char => char.toUpperCase());
capitalizeEveryWord('hello world!'); // 'Hello World!'


No need to customize it. Just copy-paste. Rest edit the code as per comments and need.

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Troubleshooting the Errors:

Do it with concentration and patience. Check your alls steps and again and all codes or scripts. If you find any error you can contact us anytime via comment or better via email, We are always here to help you.

Final Words:

That’s all we have. We hope that you liked this article. If you have any problem with this code in your template then feel free to contact us with a full explanation of your problem. We will reply to you as time allows us If you have any doubts and problems please comment below. We are happy to help you! If you liked this article, Don’t forget to share this with your friends so they can also take benefit from it and leave.

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