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Diagram of a double POST problem encountered in user agents. Diagram of the double POST problem above being solved by PRG. Post/Redirect/Get (PRG) is a web development design pattern that lets the page shown after a form submission be reloaded, shared, or bookmarked without ill effects, such as submitting the form another time.
POST is therefore suitable for requests which change the state each time they are performed, for example submitting a comment to a blog post or voting in an online poll. GET is defined to be nullipotent , with no side-effects, and idempotent operations have "no side effects on second or future requests".
Version 4.0 was standardized at OASIS, [2] with a release in March 2014. [3] In April 2015 OASIS submitted OData v4 and OData JSON Format v4 to ISO/IEC JTC 1 for approval as an international standard. [4] In December 2016, ISO/IEC published OData 4.0 Core as ISO/IEC 20802-1:2016 [5] [6] and the OData JSON Format as ISO/IEC 20802-2:2016. [7]
A variation known as MERN replaces Angular with React.js front-end, [3] [4] and another named MEVN use Vue.js as front-end. Because all components of the MEAN stack support programs that are written in JavaScript, MEAN applications can be written in one language for both server-side and client-side execution environments.
Angular (also referred to as Angular 2+) [4] is a TypeScript-based free and open-source single-page web application framework. It is developed by Google and by a community of individuals and corporations. Angular is a complete rewrite from the same team that built AngularJS.
Angular 4 was announced on 13 December 2016, skipping 3 to avoid a confusion due to the misalignment of the router package's version which was already distributed as v3.3.0. [ 23 ] AngularDart works on Dart , which is an object-oriented , class defined , single inheritance programming language using C style syntax , that is different from ...
ECMAScript is commonly used for client-side scripting on the World Wide Web, and it is increasingly being used for server-side applications and services using runtime environments such as Node.js, [3] Deno [4] and Bun.
[3] Original implementations of the CGI interface typically had adverse effects on the server load however, because each request started a separate process. [4] More recent implementations utilize persistent processes amongst other techniques to reduce the footprint in the server's resources and offer a general performance boost. [citation needed]