JavaScript: Convert a string into camel case

Last update on May 30 2022 09:59:19 (UTC/GMT +8 hours)

JavaScript String: Exercise-11 with Solution

Write a JavaScript function to convert a string into camel case.

Test Data:
console.log(camelize("JavaScript Exercises"));
console.log(camelize("JavaScript exercises"));
console.log(camelize("JavaScriptExercises"));
"JavaScriptExercises"
"JavaScriptExercises"
"JavaScriptExercises"

Pictorial Presentation:

JavaScript: Convert a string into camel case

Sample Solution:-

HTML Code:

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Javascript camel case</title>
</head>
<body>
</body>
</html>

JavaScript Code:

camelize = function camelize(str) {
      return str.replace(/\W+(.)/g, function(match, chr)
       {
            return chr.toUpperCase();
        });
    }

console.log(camelize("JavaScript Exercises"));
console.log(camelize("JavaScript exercises"));
console.log(camelize("JavaScriptExercises"));

Sample Output:

JavaScriptExercises
JavaScriptExercises
JavaScriptExercises

Flowchart:

Live Demo:

See the Pen JavaScript Convert a string into camel case - string-ex-11 by w3resource (@w3resource) on CodePen.

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Previous: 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.
Next: Write a JavaScript function to uncamelize a string.

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