JavaScript: Make capitalize the first letter of each word in a string

Last update on May 30 2022 10:00:13 (UTC/GMT +8 hours)

JavaScript String: Exercise-9 with Solution

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

Test Data:
console.log(capitalize_Words('js string exercises'));
"Js String Exercises"

Pictorial Presentation:

JavaScript: Make capitalize the first letter of each word in a string

Sample Solution:-

HTML Code:

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Make capitalize the first letter of each word in a string</title>
</head>
<body>
</body>
</html>

JavaScript Code:

//capitalize_Words 
function capitalize_Words(str)
{
 return str.replace(/\w\S*/g, function(txt){return txt.charAt(0).toUpperCase() + txt.substr(1).toLowerCase();});
}
console.log(capitalize_Words('js string exercises'));

Sample Output:

Js String Exercises

Flowchart:

Live Demo:

See the Pen JavaScript Make capitalize the first letter of each word in a string - string-ex-9 by w3resource (@w3resource) on CodePen.

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Previous: Write a JavaScript function to capitalize the first letter of a string.
Next: Write a JavaScript function that takes a string which has lower and upper case letters as a parameter and converts upper case letters to lower case, and lower case letters to upper case.

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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