FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -The process of creating and embedding scripts in a web page is known as web-scripting. A script or a computer-script is a list of commands that are embedded in a web-page normally and are interpreted and executed by a certain program or scripting engine.

Detailed explanation-2: -JavaScript is the dominant client-side scripting language of the Web, with 98% of all websites (mid–2022) using it for this purpose. Scripts are embedded in or included from HTML documents and interact with the DOM. All major web browsers have a built-in JavaScript engine that executes the code on the user’s device.

Detailed explanation-3: -In contrast, JavaScript has no compilation step. Instead, an interpreter in the browser reads over the JavaScript code, interprets each line, and runs it. More modern browsers use a technology known as Just-In-Time (JIT) compilation, which compiles JavaScript to executable bytecode just as it is about to run.

Detailed explanation-4: -In order to assess the consequences of any such decision, it helps to understand how browsers work: When the browser processes an HTML document, it does so from top to bottom. Upon encountering a <script> tag, it halts (“blocks”) further processing[2] in order to download the referenced script file.