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2. Comparison of programming languages (string functions)

   en.wikipedia.org/wiki/Comparison_of_programming...

   rfind(string,substring) returns integer Description Returns the position of the start of the last occurrence of substring in string. If the substring is not found most of these routines return an invalid index value – -1 where indexes are 0-based, 0 where they are 1-based – or some value to be interpreted as Boolean FALSE. Related instr

3. JavaScript syntax - Wikipedia

   en.wikipedia.org/wiki/JavaScript_syntax

   The syntax of JavaScript is the set of rules that define a correctly structured JavaScript program. The examples below make use of the log function of the console object present in most browsers for standard text output. The JavaScript standard library lacks an official standard text output function (with the exception of document.write).

4. JavaScript - Wikipedia

   en.wikipedia.org/wiki/JavaScript

   This is an accepted version of this page This is the latest accepted revision, reviewed on 8 February 2025. High-level programming language Not to be confused with Java (programming language), Javanese script, or ECMAScript. JavaScript Screenshot of JavaScript source code Paradigm Multi-paradigm: event-driven, functional, imperative, procedural, object-oriented Designed by Brendan Eich of ...

5. PureScript - Wikipedia

   en.wikipedia.org/wiki/PureScript

   PureScript is a strongly-typed, purely-functional programming language that transpiles to JavaScript, [2] C++11, [3] Erlang, [4] and Go. [5] It can be used to develop web applications, server side apps, and also desktop applications with use of Electron or via C++11 and Go compilers with suitable libraries.

6. Substring - Wikipedia

   en.wikipedia.org/wiki/Substring

   A string is a substring (or factor) [1] of a string if there exists two strings and such that =.In particular, the empty string is a substring of every string. Example: The string = ana is equal to substrings (and subsequences) of = banana at two different offsets:

7. Node.js - Wikipedia

   en.wikipedia.org/wiki/Nodejs

   Node.js is a cross-platform, open-source JavaScript runtime environment that can run on Windows, Linux, Unix, macOS, and more. Node.js runs on the V8 JavaScript engine, and executes JavaScript code outside a web browser. Node.js lets developers use JavaScript to write command line tools and for server-side scripting.

8. String (computer science) - Wikipedia

   en.wikipedia.org/wiki/String_(computer_science)

   A program may also accept string input from its user. Further, strings may store data expressed as characters yet not intended for human reading. Example strings and their purposes: A message like "file upload complete" is a string that software shows to end users. In the program's source code, this message would likely appear as a string literal.

9. ECMAScript - Wikipedia

   en.wikipedia.org/wiki/ECMAScript

   Previously, JavaScript only supported function scoping using the keyword var, but ECMAScript 2015 added the keywords let and const, allowing JavaScript to support both block scoping and function scoping. JavaScript supports automatic semicolon insertion, meaning that semicolons that normally terminate a statement in C may be omitted in ...