JavaScript is one of the world’s most popular programming languages, primarily used to add automation, animations and interactivity to Web pages. Web developers use JavaScript for anything from automating simple tasks to creating complex Web pages that behave like desktop software applications. JavaScript is also used beyond the Web in software, servers and embedded hardware controls.
Run JavaScript in Web Pages
Used in Web pages, JavaScript is a “client-side” programming language. This means JavaScript scripts are read, interpreted and executed in the client, which is your Web browser. By comparison, “server-side” programming languages run on a remote computer, such as a server hosting a website. The client-side nature of JavaScript allows developers to add interactive features that change and update a Web page without reloading a new copy of the page from the website.
Implement Basic Automation
In addition to standard programming language features, such as text manipulation and math calculations, JavaScript can access a wealth of information about the browser and the Web page it runs in. JavaScript can use this information to write a custom greeting based on the time of day, add the Web page address in the page footer and optimize the Web page based on the browser you are using.
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