What is the main use of JavaScript to provide interactivity to HTML pages?
Javascript is used by programmers across the world to create dynamic and interactive web content like applications and browsers. JavaScript is so popular that it's the most used programming language in the world, used as a client-side programming language by 97.0% of all websites. Client-side languages are those whose action takes place on the user's computer, rather than on the server. Show
JavaScript is versatile enough to be used for a variety of different applications, like software, hardware controls, and servers. JavaScript is most known for being a web-based language, because it's native to the web browser. The web browser can naturally understand the language, like how a native English speaker can naturally understand English. JavaScript has evolved over the past 25 years to become a versatile and accessible programming language for working with web browsers. Developers use JavaScript to build complex interactive websites and browser games, and to connect servers to websites and web applications. Because of this versatility, it’s easy to see why this language is the most commonly used programming language in the world. Creating Interactive WebsitesJavaScript makes web pages dynamic. Before JavaScript, web pages were built only with HTML and CSS. HTML and CSS are only capable of creating static pages that can be styled but not interactive aside from hyperlinks. Some of the most popular websites are built with JavaScript, including Google, YouTube, and Facebook. JavaScript allows developers to implement features like:
Building ApplicationsWith JavaScript’s extensive collection of frameworks, developers can efficiently build apps for mobile and web. Frameworks are libraries of pre-written JavaScript code that developers use for standard features. You can think of a JavaScript framework like a blueprint. The most popular JavaScript application frameworks are:
Facebook built React and React Native, which are currently powering some of the world’s most powerful social media applications. React is used by websites like Uber, Pinterest, Netflix, Instagram, Amazon, Twitter, Udemy, and more. Facebook, Instagram, Shopify, Words with Friends, Skype, Pinterest, Discord, Tesla, and Uber Eats use React Native. Developing Engaging GamesJavaScript is frequently used to create in-browser games. Developers use JavaScript to create 2D and 3D puzzles, role-playing games, racing games, platform games, and more. Creating a simple browser game can be a great way to start practicing your JavaScript skills as a beginner. There are hundreds of JavaScript game engines that provide frameworks for buidling games, and many are free and open-source. The most popular game engines include Backbone, DarlingJS, and JawsJS. Popular browser-based games built using JavaScript:
What is JavaScript Designed For?JavaScript was designed by Brendan Eich at Netscape as a way to remove the limitation of static pages on the web. Eich set out to create a scripting language for the web that used the syntax of Java, another programming language. JavaScript was designed for:
Why do we Need JavaScript?Whether you plan to specialize in front-end, back-end, or full-stack development, JavaScript is a crucial programming language for any web developer. Without JavaScript, we wouldn’t have the dynamic and interactive web pages that have become the standard user experience we all know, love, and rely on. Is JavaScript Used for Front-End or Back-End?Javascript is a client-side language, which technically makes it a front-end language. But with the Node.js framework, JavaScript can also be used in back-end. Using JavaScript across the whole stack, for both front-end and back-end, is an excellent practice because it creates a cohesive application. When as much code as possible is all in the same language, it makes it easier to maintain, manage, update, and build with a single team. When it’s used for front-end, JavaScript makes web pages dynamic and interactive. It validates submission forms, updates certain pieces of content on the page without updating the entire page, shows and hides menus, and displays animations. When it's used for back-end, the Node.js framework allows a server to handle front-end data updates and build scalable network applications to process simultaneous user requests. Want to learn more about the web's favourite programming language? Start to code with our free 10-hour online course, or go all-in and apply for our web development bootcamp. How does JavaScript interact with HTML?Here's how it works. HTML tags create objects; JavaScript lets you manipulate those objects. For example, you use the HTML and tags to create a Web page, or document. As shown in Table 1, after that document is created, you can interact with it by using JavaScript.
How does JavaScript make web pages interactive?The ease of which Javascript code can be written as markup makes it very modifiable. Besides inputting the code in a standard HTML text file, it is also possible to create a separate file that will run across multiple web pages. This saves the time of having to input it into every page.
What type of JavaScript would you use to add interactivity on your web pages?SVG can even contain ECMAScript (which is the standardized scripting language on which JavaScript is based) to add interactivity inside.
What is the main purpose of JavaScript?JavaScript is a text-based programming language used both on the client-side and server-side that allows you to make web pages interactive. Where HTML and CSS are languages that give structure and style to web pages, JavaScript gives web pages interactive elements that engage a user.
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