Hello, World

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.

Objective

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.

Task

A greeting function is provided for ou in the editor below. It has one parameter, $parameter Variable$. 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 $parameter Variable$ ($i.e:$ the argument passed to main). You’ve got this!

Input Format

Outpur 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 $parameter Variable$.

Input

Welcome to 10 Days of Javascript!

Output

Hello, World!
Welcome to 10 Days of Javascript!

Explanation

We print two lines of output:

1. We printed the literal string $Hello, World!$ using the code provided in the Editor
2. the value of $parameter Variable$ 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 $parameter Variable$.

Dev

'use strict';

process.stdin.resume();
process.stdin.setEncoding('utf-8');

let inputString = '';
let currentLine = 0;

process.stdin.on('data', inputStdin => {
    inputString += inputStdin;
});

process.stdin.on('end', _ => {
    inputString = inputString.trim().split('\n').map(string => {
        return string.trim();
    });

    main();    
});

function readLine() {
    return inputString[currentLine++];
}

/**
*   A line of code that prints "Hello, World!" on a new line is provided in the editor.
*   Write a second line of code that prints the contents of 'parameterVariable' on a new line.
*
*	Parameter:
*   parameterVariable - A string of text.
**/
function greeting(parameterVariable) {
    // This line prints 'Hello, World!' to the console:
    console.log('Hello, World!');

    // Write a line of code that prints parameterVariable to stdout using console.log:
    console.log(parameterVariable);

}