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JavaScript is a language built with web development in mind. Here’s a practical example - a JavaScript function might check on-page forms to ensure that all necessary fields are completed before sending any information to the server.įrom a practical standpoint, JavaScript is often used in tandem with HTML and CSS to create dynamic, responsive web pages. This functionality cuts down on the amount of communication between a given page and its server and allows certain functions to run even after a web page has finished loading. JavaScript is also a client-side language, which means that its source code passes through a client’s web browser instead of the webserver. OOPs are designed to allow coders to structure and modify programs quickly. As an object-oriented language (OOP), JavaScript depends on objects, or data structures that hold data and the applicable functions. JavaScript is an object-oriented scripting language used most often in web development - although, as we mentioned earlier, it can be applied to other coding fields.
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