JavaScript Function Snippets
The JavaScript snippet collection contains a wide variety of ES6 helper functions. It includes helpers for dealing with primitives, arrays and objects, as well as algorithms, DOM manipulation functions and Node.js utilities.
Can I use an arrow function as the callback for an event listener in JavaScript?
Learn the differences between JavaScript ES6 arrow functions and regular functions and how they affect event listener callbacks.
JavaScript, Browser · Jun 12, 2021
Where and how can I use memoization in JavaScript?
Learn different ways to memoize function calls in JavaScript as well as when to use memoization to get the best performance results.
JavaScript, Function · Nov 7, 2021
Boolean traps and how to avoid them
Boolean traps can cause readability and maintainability issues in your code. Learn what they are, how to spot and fix them in this article.
JavaScript, Function · Jul 11, 2021
Asynchronous array loops in JavaScript
Asynchronously looping over arrays in JavaScript comes with a few caveats you should watch out for.
JavaScript, Array · Jun 12, 2021
Using JavaScript generator functions for ranges
Learn how to use JavaScript ES6 generators and iterators to iterate over ranges of numbers.
JavaScript, Function · Jun 12, 2021
Understanding higher-order functions in JavaScript
Learn everything you need to know about higher-order functions with this short guide and level up your programming skills.
JavaScript, Function · Nov 7, 2021
Run function asynchronously
Runs a function in a separate thread by using a Web Worker.
JavaScript, Browser · Oct 22, 2020
What are the differences between arrow functions and regular functions in JavaScript?
JavaScript's arrow functions are seemingly the same as regular functions, but there are some important differences you need to know.
JavaScript, Function · Oct 17, 2021
What is a callback function?
JavaScript uses callback functions quite a lot. From event listeners to asynchronous code, they're an invaluable tool you need to master.
JavaScript, Function · Oct 3, 2021
Are JavaScript closures inherently evil?
Closures are used frequently, yet often misunderstood. Understanding them in depth is crucial to be able to write clean, maintainable code.
JavaScript, Function · May 18, 2022
Asynchronous JavaScript Cheat Sheet
Learn everything you need to know about promises and asynchronous JavaScript with this handy cheatsheet.
JavaScript, Function · Jun 12, 2021
Deep merge objects
Deeply merges two objects, using a function to handle keys present in both.
JavaScript, Object · Jul 25, 2021
Converge branching functions
Converges a list of branching functions into a single function and returns the result.
JavaScript, Function · Jan 8, 2021
Introduction to arrow functions in JavaScript
JavaScript arrow functions are a very useful tool to learn and master. Here's a complete introduction to everything you need to know.
JavaScript, Function · Jun 12, 2021
Where and how can I use the Boolean function in JavaScript?
JavaScript's Boolean function can be used for truth-checking data among other things. Learn how to use it and level up your code today.
JavaScript, Function · Jun 12, 2021
