A function in JavaScript is similar to a procedurea set of statements that performs a task or calculates a value, but for a procedure to qualify as a function, it should take some input and return an output where there is some obvious relationship between the input and the output. JavaScript runs on the client side of the web, which can be used to design / program how the web pages behave on the occurrence of an event. With JavaScript being of the most popular programming languages in the world, it would stand to reason that someone would eventually come up with a way to use it for server-side scripting. Those who know JavaScript can immediately apply that knowledge to the Marketing Cloud application. variable. Over the last decade, JavaScript has emerged as the most popular language among developers. 98% of websites will utilize JavaScript on the client side by 2022 to control webpage functionality, frequently integrating third-party libraries. Java Voted as the Favorite Programming Language. Python is a high-level, general-purpose programming language.Its design philosophy emphasizes code readability with the use of significant indentation.. Python is dynamically-typed and garbage-collected.It supports multiple programming paradigms, including structured (particularly procedural), object-oriented and functional programming.It is often described as a "batteries -----is a high-level scripting language that is synchronous with client-sidescripting-----is the scripting language designed primarily for adding interactively to webpages and creating web applications; A -----scripting is a light weight programming language; Client-side JavaScript code is embedded within HTML documents in That is, the page itself (the HTTP response that is) does It's possible to make a router using the native capabilities of JavaScript and the browser, but popular, actively developed frameworks have companion libraries that make routing a more intuitive part of the development process. XMLHttpRequest Fetch ; PHPPython Node JavaScript's strict mode is a way to opt in to a restricted variant of JavaScript, thereby implicitly opting-out of "sloppy mode". Overview: Client-side web APIs; Next ; The browser contains some very powerful graphics programming tools, from the Scalable Vector Graphics language, to APIs for drawing on HTML