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JavaScript: Convert a string into camel case

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:

Flowchart: JavaScript- Convert a string into camel case

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.

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JavaScript: Tips of the Day

var functionName = function() {} vs function functionName() {}

The difference is that functionOne is a function expression and so only defined when that line is reached, whereas functionTwo is a function declaration and is defined as soon as its surrounding function or script is executed (due to hoisting).

For example, a function expression:

// TypeError: functionOne is not a function
functionOne();

var functionOne = function() {
  console.log("Hello!");
};

Historically, function declarations defined within blocks were handled inconsistently between browsers. Strict mode (introduced in ES5) resolved this by scoping function declarations to their enclosing block.

'use strict';    
{ // note this block!
  function functionThree() {
    console.log("Hello!");
  }
}
functionThree(); // ReferenceError

Ref: https://bit.ly/2zMAj1O