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JavaScript: Convert a string to title case

JavaScript String: Exercise-34 with Solution

Write a JavaScript function to convert a string to title case.

Test Data:
console.log(sentenceCase('PHP exercises. python exercises.'));
"Php Exercises. Python Exercises."

Pictorial Presentation:

JavaScript: Convert a string to title case

Sample Solution:-

HTML Code:

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>JavaScript function to convert a string to title case.</title>
</head>
<body>

</body>
</html>

JavaScript Code:

function sentenceCase (str) {
  if ((str===null) || (str===''))
       return false;
  else
   str = str.toString();

 return str.replace(/\w\S*/g, function(txt){return txt.charAt(0).toUpperCase() + txt.substr(1).toLowerCase();});
}

console.log(sentenceCase('PHP exercises. python exercises.'));

Sample Output:

Php Exercises. Python Exercises.

Flowchart:

Flowchart: JavaScript- Convert a string to title case

Live Demo:

See the Pen JavaScript Convert a string to title case-string-ex-34 by w3resource (@w3resource) on CodePen.


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JavaScript: Tips of the Day

How to check whether a string contains a substring in JavaScript?

ECMAScript 6 introduced String.prototype.includes:

const string = "foo";
const substring = "oo";

console.log(string.includes(substring));

includes doesn't have Internet Explorer support, though. In ECMAScript 5 or older environments, use String.prototype.indexOf, which returns -1 when a substring cannot be found: 

var string = "foo";
var substring = "oo";

console.log(string.indexOf(substring) !== -1);

Ref: https://bit.ly/3fFFgZv