JavaScript: Capitalize each word in the string

Last update on May 30 2022 10:02:11 (UTC/GMT +8 hours)

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:

Live Demo:

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

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JavaScript: Tips of the Day

How to insert an item into an array at a specific index (JavaScript)?

What you want is the splice function on the native array object.

arr.splice(index, 0, item); will insert item into arr at the specified index (deleting 0 items first, that is, it's just an insert). In this example we will create an array and add an element to it into index 2:

var arr = [];
arr[0] = "Jani";
arr[1] = "Hege";
arr[2] = "Stale";
arr[3] = "Kai Jim";
arr[4] = "Borge";

console.log(arr.join());
arr.splice(2, 0, "Lene");
console.log(arr.join());

Ref: https://bit.ly/2BXbp04