Using the Modulo Operator in JavaScript
A discussion about the JavaScript modulo operator, its functionality, origins, and diverse applications in web dev, including arithmetic and complex algorithms.
Articles
JavaScript, page 10 of 18
JavaScript is the working language behind most of my front‑end writing, from small browser behaviours to application state and asynchronous code. These articles favour the mechanism behind a feature over a clever trick, whether the subject is callbacks, async code, or a language edge that only becomes obvious in production.
Using the Modulo Operator in JavaScript. 
Throttling Scroll Events in JavaScript. Throttling Scroll Events in JavaScript
Care needs to be taken when using the onScroll event; it can trigger frequently, leading to greater client‑side resource (CPU) usage, and a laggy interface.
How to Handle Multiple Named Exports in One JavaScript File. How to Handle Multiple Named Exports in One JavaScript File
A simple explanation about how to handle multiple named exports from a single JavaScript file; an essential piece of knowledge when developing modern websites.
How to Import All Named Exports from a JavaScript File. How to Import All Named Exports from a JavaScript File
Import all named exports from a JavaScript module with namespace or explicit named imports, including how each approach handles default exports.
Check If a String Contains Only Whitespace with JavaScript. Check If a String Contains Only Whitespace with JavaScript
Determining whether an input in your application consists of only whitespace needn't be a particularly difficult or complex task. Trim() or Regex will work!
Higher‑Order Functions in JavaScript. Higher‑Order Functions in JavaScript
Higher‑order functions in JavaScript take functions as arguments or return them. Here, I explore their benefits, common use cases, and practical examples.
Spread Syntax in JavaScript (...). Spread Syntax in JavaScript (
...)In a nutshell, JavaScript spread syntax allows you to pass the elements of an iterable (for example an array), through to a function as individual elements.
The Safest Way to Test for NaN in JavaScript. The Safest Way to Test for NaN in JavaScript
Why equality, typeof and global isNaN() are unreliable JavaScript NaN checks, and when Number.isNaN() provides a safer modern alternative in practice.
When to Use var or let or const. When to Use
varorletorconstCompare var, let, and const in JavaScript, including scope, hoisting, reassignment, block behaviour, ES6 defaults, and when each declaration fits.
Where to Find Jobs in Web Development. Where to Find Jobs in Web Development
Find web development jobs through job boards, aggregators, social networking, cold outreach, freelance routes, contract listings, and better search habits.
LocalStorage in JavaScript. localStoragein JavaScriptWith HTML5, new storage APIs became available that allow us to store small amounts of non‑essential data on the client‑side without needing cookies.
Optional Chaining in JavaScript (?.). Optional Chaining in JavaScript (
?.)Introduced as part of the ES2020 spec, JavaScript optional chaining takes some of the guesswork and convoluted if statement structuring out of accessing data.
Cleaning up Your JavaScript Code: The Double Bang (!!) Operator. Cleaning up Your JavaScript Code: The Double Bang (
!!) OperatorThe double bang operator turns values into explicit booleans, but it is not always the clearest option. Here's when it helps and when it does not.
React vs. Vue vs. Angular. React vs. Vue vs. Angular
Compare React, Vue, and Angular across ecosystem, learning curve, state, templates, team fit, SEO concerns, and how to choose a front‑end framework.
Static Site Generators. Static Site Generators
Static site generators trade runtime complexity for build‑time output. This article looks at the benefits, the drawbacks, and where they fit best.
All About Headless CMSes. All About Headless CMSes
What headless CMSes are, how API‑first content supports multiple front ends, who benefits, and the trade‑offs between several popular platforms.
What Makes a Great JavaScript Developer? What Makes a Great JavaScript Developer?
What makes a great JavaScript developer goes well beyond syntax. This article looks at judgement, fundamentals, debugging, and day‑to‑day habits.
Renaming and Destructuring Variables in ES6. Renaming and Destructuring Variables in ES6
Perhaps one of the most‑used but misunderstood features of ES6, destructuring data is easy to use and leads to cleaner, simpler code and happier developers!
