And the list continued with all the cool things you can do with JavaScript.When the button is clicked, it will perform an action where the product is added to the cart and updates an icon on the cart, that tells how many products are now in the cart. This could be a click on a “Add to cart” button. It’s also possible to execute code when an event occurs on the website.So if you have a string called “ Name:” it’s possible to ad a variable to the string and thereby create a text label “ Name: Jake”. JavaScript started at Netscape, a web browser developed in the 1990s. Do operations on text pieces, which is referred to as strings. What is JavaScript JavaScript is primarily a client-side language.If you ask for a job title to be entered in a form field, it can store the name in a variable called “ job title” ![]() The JavaScript language provides features that allows developers to do things like: However, its simplicity also means that it lacks some of the features and tools found in other programming languages. JavaScript is a relatively simple language, making it good for beginners. But there is more to it than meets the eye. The operator is used in conditional statements, and when paired with a :, can function as a compact alternative to if.else statements. Node. The conditional or question mark operator, represented by a, is one of the most powerful features in JavaScript. ![]() Google’s V8 engine powers Google Chrome browsers, as well as, Node.js. All modern browsers come with their own version of the JavaScript Engine but the most popular one is Google’s V8 Engine. One of the benefits of interpreted languages is that they're usually easy to learn and use. JavaScript (JS) is a type of web programming language that is supported across all web browsers and tools, and is the language that gives JavaScript. The JavaScript Engine is a program whose responsibility is to execute JavaScript code. Instead, the JavaScript interpreter parses and executes the code as it runs. JavaScript is an interpreted language, which means that it's not compiled into machine code like other programming languages. When you visit a web page that contains JavaScript code, the code is executed as the page loads. JavaScript code is executed in your's web browser.
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