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import QuizComponent from "./components/article/quiz";

Getting Started with "Hello World" in JavaScript

JavaScript, often referred to as the language of the web, is a versatile and powerful tool used for creating interactive websites and web applications. It serves as the backbone of modern web development. Let's begin our journey into JavaScript with a classic: the "Hello World" program.

What is "Hello World"?

"Hello World" is a time-honored tradition in programming. It's a simple introductory program that displays the phrase "Hello, World!" on the screen. While it may seem basic, it's a fundamental first step for beginners to grasp the syntax and structure of a programming language.

Writing "Hello World" in JavaScript

In JavaScript, you can create a "Hello World" program with just a single line of code:

console.log("Hello, World!");

Here's a breakdown of this line:

• console refers to the console object, which provides access to the browser's debugging console.
• log() is a method of the console object used to display messages or data in the console.
• 'Hello, World!' is the text string that will be displayed in the console.

Understanding the Code

The console.log() statement is commonly used for debugging and displaying information while developing JavaScript applications. In this case, it outputs the specified text to the console.

Quiz Time!

Let's reinforce your understanding with a quick quiz about the "Hello World" program in JavaScript.

<QuizComponent questions={[ { type: "radio", questionText: "What is the purpose of console.log() in JavaScript?", options: [ { text: "To display text in the console.", isCorrect: true, correctResponse: "Correct! console.log() outputs text to the console.", }, { text: "To add numbers together.", isCorrect: false, correctResponse: "", incorrectResponse: "", }, { text: "To play audio files on a website.", isCorrect: false, correctResponse: "", incorrectResponse: "", }, { text: "To read your computer's logs.", isCorrect: false, correctResponse: "", incorrectResponse: "", }, ], }, { type: "text", questionText: 'What is the output of console.log("Hi Jane!")?', text: [ { match: "Hi Jane!", isCorrect: true, correctResponse: "Correct! Everything inside of the double quotes will be printed.", }, { match: ".*", isCorrect: false, correctResponse: 'The console.log statement should output, "Hi Jane!"', }, ], }, ]} />