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.
Articles
ES6, page 2 of 3
ES6 (also known as ECMAScript 2015), was the sixth edition of the ECMAScript specification. It introduced a lot of improvements and new features to the JavaScript language (such as arrow functions, promises, classes, and template literals).
Below you will find a subset of articles from my blog specifically about ES6. This is an area that I have worked with for many years, and have managed to write about quite a few times. There are forty‑two collected together for you below.
Spread Syntax in JavaScript (...). Spread Syntax in JavaScript (
The Safest Way to Test for NaN. The Safest Way to Test for
NaNNaN is an unusual concept in JavaScript, especially for developers newer to the language. As a result, testing for it can be more complex than first expected.
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.
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.
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!
How to Choose a React Developer. How to Choose a React Developer
Hiring a React developer is about more than matching keywords. This guide looks at fundamentals, judgement, and what good front‑end signals look like.
React: Functional, Class, and Pure Components. React: Functional, Class, and Pure Components
Compare React functional, class, and pure components, including reusable component design, presentation boundaries, legacy patterns, and when each fits.
JavaScript’s Math.random(). JavaScript's
Math.random()JavaScript Math.random() explained beyond the basics, including pseudo‑random generation, browser history, ranges, array indexes, and randomness limits.
Understanding the JavaScript Event Loop. Understanding the JavaScript Event Loop
The JavaScript event loop manages asynchronous tasks in a single‑threaded environment. I explore how it works with the call stack, task queue, and microtasks.
Simplify Asynchronous JavaScript with async/await. Simplify Asynchronous JavaScript with
async/awaitUse async and await to simplify asynchronous JavaScript, with promise comparisons, error handling, readable control flow, and common pitfalls in real apps.
Generators in JavaScript: A Beginner's Guide. Generators in JavaScript: A Beginner's Guide
JavaScript generators explained for beginners, covering generator function syntax, yield, paused execution, iteration patterns, and where generators still help.
Promises in JavaScript: An Introduction. Promises in JavaScript: An Introduction
Promises make asynchronous JavaScript easier to reason about. This introduction covers pending, fulfilled, rejected, and how chaining cleans things up.
Rest and Spread Operators in JavaScript: A Beginner's Guide. Rest and Spread Operators in JavaScript: A Beginner's Guide
Rest and spread operators solve different problems in JavaScript. This beginner‑friendly guide shows the syntax, the difference, and common use cases.
Template Literals in JavaScript: Writing Multi‑Line Strings. Template Literals in JavaScript: Writing Multi‑Line Strings
Use JavaScript template literals for multi‑line strings, interpolation, cleaner formatting, practical string construction, and pitfalls around whitespace.
Default Parameters in JavaScript in More Depth. Default Parameters in JavaScript in More Depth
Default parameters in JavaScript explored in more depth, including expression defaults, evaluation order, undefined, API design, and subtle edge cases.
Default Parameters in JavaScript: A Guide. Default Parameters in JavaScript: A Guide
Default parameters in JavaScript explained from the ES6 syntax through undefined handling, old workarounds, cleaner calls, everyday use, and function design.
Understanding Arrow Functions in JavaScript. Understanding Arrow Functions in JavaScript
A technical article explaining what arrow functions are in JavaScript, and providing code examples. It includes comparisons against non‑arrow functions.
