--- title: "#javascript-functions articles | Hashnode" description: "Explore 113 articles tagged #javascript-functions on Hashnode. Tutorials, guides, and how-tos from the community." url: "https://hashnode.com/tag/javascript-functions" --- Tag # #javascript-functions 113 posts · 4 followers [Joseph Udomason](https://hashnode.com/@josephudomason) · [Oct 12](https://hashnode.com/posts/javascript-beyond-the-syntax-understanding-the-language-and-how-it-really-works/6acc9d7442aa59f60b442e8c) ### [JavaScript Beyond the Syntax: Understanding the Language and How It Really Works](https://joedev001.hashnode.dev/javascript-beyond-the-syntax-understanding-the-language-and-how-it-really-works?utm_source=hashnode&utm_medium=feed) Learn JavaScript fundamentals, modern syntax, functions, closures, arrays, asynchronous programming, the event loop, & essential programming concepts 16 min read · [joedev001.hashnode.dev](https://joedev001.hashnode.dev/javascript-beyond-the-syntax-understanding-the-language-and-how-it-really-works?utm_source=hashnode&utm_medium=feed) [Shikhar Gupta](https://hashnode.com/@shiikharrr) · [Apr 15](https://hashnode.com/posts/functions-in-javascript/69dfa58a70e165e0d8bd8b21) ### [Functions in JavaScript](https://thecleancommit.hashnode.dev/functions-in-javascript?utm_source=hashnode&utm_medium=feed) The Foundation of Reusable Code 6 min read · [thecleancommit.hashnode.dev](https://thecleancommit.hashnode.dev/functions-in-javascript?utm_source=hashnode&utm_medium=feed) [Gambit](https://hashnode.com/@onchiangambit) · [Apr 2](https://hashnode.com/posts/js-functions/69ce9a290ff860b6de0b8a6b) ### [Js - Functions](https://javascriptfromscratch.hashnode.dev/js-functions?utm_source=hashnode&utm_medium=feed) Simple function declaration Let's make a simple function that console logs "Hello" whenever called. function sayHello(){ console.log("Hello") } console.log(sayHello) // \[Function: sayHello\] sa 8 min read · [javascriptfromscratch.hashnode.dev](https://javascriptfromscratch.hashnode.dev/js-functions?utm_source=hashnode&utm_medium=feed) [Robert Muendo](https://hashnode.com/@robertmuendo254) · [Mar 28](https://hashnode.com/posts/the-power-of-functions-reusable-code-patterns-in-javascript/69c7d5dc7cf27065101b5859) ### [The Power of Functions: Reusable Code Patterns in JavaScript](https://javascript-for-beginners.hashnode.dev/the-power-of-functions-reusable-code-patterns-in-javascript?utm_source=hashnode&utm_medium=feed) Demystify JavaScript functions! Learn function declarations, parameters, return statements, arrow functions, and build a tip calculator. Reusable code 4 min read · [javascript-for-beginners.hashnode.dev](https://javascript-for-beginners.hashnode.dev/the-power-of-functions-reusable-code-patterns-in-javascript?utm_source=hashnode&utm_medium=feed) [Akash Sangle](https://hashnode.com/@akash166) · [Mar 22](https://hashnode.com/posts/the-this-keyword-in-javascript-explained-with-uber/69bff977d9da55a9a59fb76b) ### [The this Keyword in JavaScript – Explained with Uber](https://javascript-this-keyword.hashnode.dev/the-this-keyword-in-javascript-explained-with-uber?utm_source=hashnode&utm_medium=feed) UnderStanding of this in JavaScript using Differnt enviroments 6 min read · [javascript-this-keyword.hashnode.dev](https://javascript-this-keyword.hashnode.dev/the-this-keyword-in-javascript-explained-with-uber?utm_source=hashnode&utm_medium=feed) [Amardeep Kumar](https://hashnode.com/@amardeepkumar840690) · [Mar 15](https://hashnode.com/posts/function-declaration-vs-function-expression-what-s-the-difference/69b6dea0f4eb2f8b04aeb752) ### [Function Declaration vs Function Expression: What’s the Difference?](https://javascript-function-declaration-and-expresssion.hashnode.dev/function-declaration-vs-function-expression-what-s-the-difference?utm_source=hashnode&utm_medium=feed) 1\. Introduction Hey Scroller! When you hear the word function in programming, what comes to mind first? Most likely, doing a specific task, right? Let’s understand this with a real-life example. Imagi 9 min read · [javascript-function-declaration-and-expresssion.hashnode.dev](https://javascript-function-declaration-and-expresssion.hashnode.dev/function-declaration-vs-function-expression-what-s-the-difference?utm_source=hashnode&utm_medium=feed) [Amruta Patil](https://hashnode.com/@amruta15) · [Mar 15](https://hashnode.com/posts/understanding-the-magic-of-this-call-apply-and-bind-in-javascript/69b6e58bf4eb2f8b04b65dfa) ### [Understanding the Magic of this, call(), apply(), and bind() in JavaScript](https://amruta-patil.hashnode.dev/understanding-the-magic-of-this-call-apply-and-bind-in-javascript?utm_source=hashnode&utm_medium=feed) Learn how this, call(), apply(), and bind() work in JavaScript with simple explanations, real-life examples, diagrams, and practical code examples 6 min read · [amruta-patil.hashnode.dev](https://amruta-patil.hashnode.dev/understanding-the-magic-of-this-call-apply-and-bind-in-javascript?utm_source=hashnode&utm_medium=feed) [Prakash Jangid](https://hashnode.com/@prakash-devx) · [Mar 15](https://hashnode.com/posts/function-declaration-vs-function-expression-what-s-the-difference/69b6b402f4eb2f8b0480a644) ### [Function Declaration vs Function Expression: What’s the Difference?](https://js-blogs.hashnode.dev/function-declaration-vs-function-expression-what-s-the-difference?utm_source=hashnode&utm_medium=feed) Functions are the most fundamental part of any programming language, which makes code resuable, readable and modular. Imagine a phone that doesn’t have a contacts list. Every time you want to call a f 5 min read · [js-blogs.hashnode.dev](https://js-blogs.hashnode.dev/function-declaration-vs-function-expression-what-s-the-difference?utm_source=hashnode&utm_medium=feed) [SATYAM SHARMA](https://hashnode.com/@Satyam-exxe) · [Mar 15](https://hashnode.com/posts/array-methods-every-living-beings-should-know/69b6ad8df4eb2f8b0479edc3) ### [Array Methods Every living beings should know](https://satyamexxe.hashnode.dev/array-methods-every-living-beings-should-know?utm_source=hashnode&utm_medium=feed) JavaScript Array Methods That Quietly Change the Way You Think About Data If you’ve ever worked with arrays in JavaScript, you probably started with something like this: for (let i = 0; i < numbers.le 6 min read · [satyamexxe.hashnode.dev](https://satyamexxe.hashnode.dev/array-methods-every-living-beings-should-know?utm_source=hashnode&utm_medium=feed) [SATYAM SHARMA](https://hashnode.com/@Satyam-exxe) · [Mar 15](https://hashnode.com/posts/arrow-functions-in-javascript/69b6b10af4eb2f8b047d7196) ### [Arrow Functions in (JavaScript)](https://satyamexxe.hashnode.dev/arrow-functions-in-javascript?utm_source=hashnode&utm_medium=feed) A Simpler Way to Write Functions When writing JavaScript, we often create small helper functions. Earlier we used the traditional function syntax, but modern JavaScript introduced arrow functions to m 3 min read · [satyamexxe.hashnode.dev](https://satyamexxe.hashnode.dev/arrow-functions-in-javascript?utm_source=hashnode&utm_medium=feed)