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.
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
JavaScript console.log() tips & tricks
Level up your JavaScript logging with these
console.log()tips and tricks.JavaScript, Browser · Jun 12, 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
JavaScript Data Structures - Binary Tree
A binary tree is a hierarchical data structure of linked nodes with at most two children each.
JavaScript, Class · Aug 26, 2021
How can I define an enum in JavaScript?
Enums are part of TypeScript, but what about defining enums in plain old JavaScript? Here are a few way you can do that.
JavaScript, Object · Jun 12, 2021
URL parameters as object
Creates an object containing the parameters of the current URL.
JavaScript, Browser · Oct 22, 2020
Introduction to the Node.js test module
The Node.js test module is a new testing tool that's still in its early stages. Learn more about it in this short introduction.
JavaScript, Node · Apr 30, 2023
How do I clone an object in JavaScript?
Learn how JavaScript handles mutable data, such as objects and arrays, and understand how shallow cloning and deep cloning work.
JavaScript, Object · Jun 12, 2021
JavaScript Data Structures - Tree
A tree is a data structure consisting of a set of linked nodes representing a hierarchical tree structure.
JavaScript, Class · Aug 22, 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
Get nested object property from path string
Retrieves a set of properties indicated by the given selectors from an object.
JavaScript, Object · Oct 19, 2020
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
K-nearest neighbors
Classifies a data point relative to a labelled data set, using the k-nearest neighbors algorithm.
JavaScript, Algorithm · Oct 13, 2021
Format duration
Returns the human-readable format of the given number of milliseconds.
JavaScript, Date · Oct 22, 2020
Calculate SHA-256 hash (browser)
Creates a hash for a value using the SHA-256 algorithm. Returns a promise.
JavaScript, Browser · Oct 13, 2021
