w3resource
JavaScript Exercises

JavaScript: Hide email addresses to protect from unauthorized user

JavaScript String: Exercise-6 with Solution

Write a JavaScript function to hide email addresses to protect from unauthorized user.

Test Data:
console.log(protect_email("[email protected]"));
"[email protected]"

Sample Solution:-

HTML Code:

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Hide email addresses to protect from unauthorised user</title>
</head>
<body>
</body>
</html>

JavaScript Code:

protect_email = function (user_email) {
    var avg, splitted, part1, part2;
    splitted = user_email.split("@");
    part1 = splitted[0];
    avg = part1.length / 2;
    part1 = part1.substring(0, (part1.length - avg));
    part2 = splitted[1];
    return part1 + "[email protected]" + part2;
};

console.log(protect_email("[email protected]"));

Sample Output:

[email protected]

Flowchart:

Flowchart: JavaScript- Hide email addresses to protect from unauthorized user

Live Demo:

See the Pen JavaScript Hide email addresses to protect from unauthorized user - string-ex-6 by w3resource (@w3resource) on CodePen.


Improve this sample solution and post your code through Disqus

Previous: Write a JavaScript function to convert a string in abbreviated form.
Next: rite a JavaScript function to parameterize a string.

What is the difficulty level of this exercise?