JavaScript 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.
Map an object to an array
Maps an object to an object array, using the provided mapping function.
JavaScript, Object · Feb 5, 2023
4 JavaScript Array methods you must know
JavaScript arrays have a very robust API offering a plethora of amazing tools. Learn the 4 must-know JavaScript array methods in this quick guide.
JavaScript, Array · Jun 12, 2021
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
Tip: Get the index of an array item in a JavaScript for...of loop
Did you know you can get the index of an array item in a JavaScript for...of loop? Learn how with this bite-sized tip.
JavaScript, Array · Jul 25, 2021
JavaScript Data Structures - Binary Search Tree
A binary search tree is a data structure consisting of a set of ordered linked nodes representing a hierarchical tree structure, in which each node can have at most two children.
JavaScript, Class · Aug 31, 2021
Frequency Map Data Structure
A custom data structure to keep track of value frequencies in an array.
JavaScript, Class · Nov 13, 2022
What are the differences between Maps and objects in JavaScript?
Maps and objects are very similar, but they have some differences that can help you decide which one better fits your use-case.
JavaScript, Object · Feb 13, 2022
Render DOM element
Renders the given DOM tree in the specified DOM element.
JavaScript, Browser · Oct 13, 2021
Ungroup array elements based on function
Creates an array of elements, ungrouping the elements in an array produced by zip and applying the provided function.
JavaScript, Array · Jan 23, 2022
8 tips for accessible websites
Accessibility (a11y) can improve your website and attract new users. Learn how to get started with these 8 quick tips.
JavaScript, Accessibility · Jun 12, 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
Tip: Make any JavaScript value iterable
Did you know you can define an iterator for any JavaScript value? This quick tip will show you how.
JavaScript, Array · Jun 12, 2021
How do I compare two objects in JavaScript?
Learn how you can compare two objects in JavaScript using various different techniques.
JavaScript, Object · Sep 26, 2021
What is a callback function?
JavaScript uses callback functions in various places for different purposes. From event listeners to asynchronous operations, they are an invaluable tool you need to master.
JavaScript, Function · Oct 3, 2021
Calculate SHA-256 hash (browser)
Creates a hash for a value using the SHA-256 algorithm. Returns a promise.
JavaScript, Browser · Oct 13, 2021
