Day 0: Hello, World! in Javascript | 10 Days Of JavaScript Solutions | HackerRank Programming Solutions [💯Correct]

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 0: Hello, World! 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 ProblemEmployee Salaries SQL – Hacker Rank Solution

Employee Salaries SQL – Hacker Rank Solution


Overview: 10 Days of JavaScript

This series focuses on learning and practicing JavaScript. Each challenge comes with a tutorial article, and you can view these articles by clicking either the Topics tab along the top or the article icon in the right-hand menu.


In this challenge, we review some basic concepts that will get you started with this series. Check out the tutorial to learn more about JavaScript’s lexical structure.


greeting function is provided for you in the editor below. It has one parameter, . Perform the following tasks to complete this challenge:

  1. Use console.log() to print Hello, World! on a new line in the console, which is also known as stdout or standard output. The code for this portion of the task is already provided in the editor.
  2. Use console.log() to print the contents of  (i.e., the argument passed to main).

You’ve got this!

Input Format

Data TypeParameterDescription
stringParameter VariableA single line of text containing one or more space-separated words.

Output Format

Print the following two lines of output:

  1. On the first line, print Hello, World! (this is provided for you in the editor).
  2. On the second line, print the contents of .

Sample Input 0

Welcome to 10 Days of JavaScript!

Sample Output 0

Hello, World!
Welcome to 10 Days of JavaScript!

Explanation 0

We printed two lines of output:

  1. We printed the literal string Hello, World! using the code provided in the editor.
  2. The value of  passed to our main function in this Sample Case was Welcome to 10 Days of JavaScript!. We then passed our variable to console.log, which printed the contents of .
Employee Salaries SQL – Hacker Rank Solution
function greeting(parameterVariable) {
  console.log("Hello, World!");

751 thoughts on “Day 0: Hello, World! in Javascript | 10 Days Of JavaScript Solutions | HackerRank Programming Solutions [💯Correct]”

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