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JavaScript: Capitalize each word in the string

JavaScript String: Exercise-41 with Solution

Write a JavaScript function to capitalize each word in the string.

Test Data:
console.log(capitalizeWords('js string exercises'));
"JS STRING EXERCISES"

Pictorial Presentation:

JavaScript: Capitalize each word in the string

Sample Solution:-

HTML Code:

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>JavaScript function to capitalize each word in the string.</title>
</head>
<body>

</body>
</html>

JavaScript Code:

function capitalizeWords(str)
{
 return str.replace(/\w\S*/g, function(txt){return txt.substr(0).toUpperCase();});
}
console.log(capitalizeWords('js string exercises'));

Sample Output:

JS STRING EXERCISES

Flowchart:

Flowchart: JavaScript: capitalize the each word of a string

Live Demo:

See the Pen JavaScript Capitalize each word in the string-string-ex-41 by w3resource (@w3resource) on CodePen.


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Next: Write a JavaScript function to uncapitalize each word in the string.

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JavaScript: Tips of the Day

JavaScript: use strict

function getAge() {
  'use strict';
  age = 21;
  console.log(age);
}

getAge();

With "use strict", you can make sure that you don't accidentally declare global variables. We never declared the variable age, and since we use "use strict", it will throw a reference error. If we didn't use "use strict", it would have worked, since the property age would have gotten added to the global object.

Ref: https://bit.ly/323Y0P6