Hello World

As usual the first thing to do when you are beginning a new language : Hello World !

Why Hello World ? 😉

In JS they are multiple different ways to do that :

• Using alert box
• Using the console
• Modifying the DOM ...

I coded for you few examples, feel free to do the same thing on your computer, you just need a text editor and a web browser to open your HTML file 👊

Code

Explanations

alert() method will open an alert box when the page is loaded containing the string that you passed in

console.log() method is logging your string as a message in the console

console.warn() method is logging your string as a warning in the console

document.querySelector("#id") is returning the DOM element with ID, and textContent will help to add text to this element

🚀 In my next post you can see how to declare variables in JS 🚀