How does JavaScipt function?
A client-side script is a type of programming language that only works on the client’s computer and doesn’t need to talk to the server to work. It does not need to talk to the server to work. Web pages that you have already loaded on your computer can still be used even if your Internet service provider goes down. However, you won’t be able to go to new Web pages or get to data that’s on another computer.
- Loading new content or data onto the page without reloading the page
- Rollover effects and dropdown menus
- Animating page elements such as fading, resizing or relocating
- Playing audio and video
- Validating input from Web forms
- Repairing browser compatibility issues
Take, for example, a search engine. Today, practically all search engines have an autocomplete feature. When the user enters a word into the search box, a list of potential search terms or phrases shows underneath. The experience is completely seamless.
The entire website reloads and displays the search results only after the user enters a search phrase. Even for that phase, engines like Google have decreased or eliminated the need to reload. They merely use the same asynchronous technique to generate results.
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