Hello Programmers/Coders, Today we are going to share solutions of Programming problems of HackerRank, 10 Days Of JavaScript. At Each Problem with Successful submission with all Test Cases Passed, you will get an score or marks. And after solving maximum problems, you will be getting stars. This will highlight your profile to the recruiters.
In this post, you will find the solution for Day 8: Create a Button in JavaScript-HackerRank Problem. We are providing the correct and tested solutions of coding problems present on HackerRank. If you are not able to solve any problem, then you can take help from our Blog/website.
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Introduction To JavaScript
JavaScript is a lightweight, cross-platform, and interpreted scripting language. It is well-known for the development of web pages, many non-browser environments also use it. JavaScript can be used for Client-side developments as well as Server-side developments. JavaScript contains a standard library of objects, like Array, Date, and Math, and a core set of language elements like operators, control structures, and statements.
Advantages of JavaScript
The merits of using JavaScript are −
- Less server interaction − You can validate user input before sending the page off to the server. This saves server traffic, which means less load on your server.
- Immediate feedback to the visitors − They don’t have to wait for a page reload to see if they have forgotten to enter something.
- Increased interactivity − You can create interfaces that react when the user hovers over them with a mouse or activates them via the keyboard.
- Richer interfaces − You can use JavaScript to include such items as drag-and-drop components and sliders to give a Rich Interface to your site visitors.
Link for the Problem – Day 8: Create a Button – Hacker Rank Solution
Day 8: Create a Button – Hacker Rank Solution
Problem:
Objective
In this challenge, we practice creating buttons in JavaScript. Check out the attached tutorial for learning materials.
Task
Complete the code in the editor so that it creates a clickable button satisfying the following properties:
- The button’s
idisbtn. - The button’s initial text label is . After each click, the button must increment by . Recall that the button’s text label is the JS object’s
innerHTMLproperty. - The button has the following style properties:
- A
widthof96px. - A
heightof48px. - The
font-sizeattribute is24px.
- A
The .js and .css files are in different directories, so use the link tag to provide the CSS file path and the script tag to provide the JS file path:
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="css/button.css" type="text/css">
</head>
<body>
<script src="js/button.js" type="text/javascript"></script>
</body>
</html>
Submissions
This is a new style of challenge involving Front-End rendering. It may take up to seconds to see the result of your code, so please be patient after clicking Submit. The Submissions page contains screenshots to help you gauge how well you did.
Ask questions in the Discussions forum and submit any bug reports to support@hackerrank.com. Enjoy!
Explanation
Initially, the button looks like this:
Day 8: Create a Button – Hacker Rank Solution
<!-- HTML --> <button id="btn" onclick="increment()">0</button>
/* CSS */
#btn {
width: 96px;
height: 48px;
font-size: 24px;
}
// JS
function increment() {
btn.innerHTML++;
}
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