Using the filter() Method in JavaScript
Use JavaScript filter() to create arrays of matching items, with callback syntax, object filtering examples, readable predicates, and practical tips.
Articles
Development, page 13 of 26
Development is the broadest category in my writing, so it works as the main archive rather than a narrow subject label. It brings together implementation notes and technical decisions, with delivery lessons from across the rest of the site.
Using the filter() Method in JavaScript. Using the
Manipulating Strings in JavaScript with split(). Manipulating Strings in JavaScript with
split()Use JavaScript split() for string manipulation, including delimiters, limits, regular expressions, edge cases, parsing, and practical data handling.
JavaScript String Manipulation: substring() vs. substr(). JavaScript String Manipulation:
substring()vs.substr()A practical guide to JavaScript
substring()andsubstr(), including indexes, lengths, swapped arguments, browser support, and which one to use.
Mastering JavaScript's slice(). Mastering JavaScript's
slice()Explore the capabilities of JavaScript's Array.prototype.slice() for creating subarrays, cloning arrays, and more, with no changes to the original.
Understanding JavaScript's sort() Method. Understanding JavaScript's
sort()MethodUnderstand JavaScript's sort() method, including in‑place mutation, string defaults, numeric comparators, object sorting, and unexpected ordering behaviour.
Unravelling JavaScript: Commonly Misunderstood Methods and Features. Unravelling JavaScript: Commonly Misunderstood Methods and Features
A tour of commonly misunderstood JavaScript features, from sort(), slice(), splice(), split(), Math.random(), parseInt(), isNaN(), typeof, and more.
Using the Modulo Operator in JavaScript. 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.
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.
What A Levels Do You Need for Software Engineering? What A Levels Do You Need for Software Engineering?
What A Levels help most for software engineering in the UK? This guide covers Maths, where Computer Science helps, and routes beyond a perfect set.
Why Remote Work Did Not Make Brighton Web Developers Less Local. Why Remote Work Did Not Make Brighton Web Developers Less Local
Remote work changed how Brighton web developers collaborate, build trust, support clients, and use local expertise without being limited by geography.
Using CSS Logical Properties for Direction‑Aware Layouts. Using CSS Logical Properties for Direction‑Aware Layouts
Use CSS logical properties for LTR, RTL, and vertical layouts. Map block and inline axes, position components, order fallbacks, and verify support.
Keeping Gatsby Build Times Under Control. Keeping Gatsby Build Times Under Control
How to keep Gatsby build times under control by managing data volume, image work, plugins, GraphQL queries, caching, and deployment expectations.
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.
Resolving mini‑css‑extract‑plugin Warnings in Gatsby. Resolving
mini‑css‑extract‑pluginWarnings in GatsbySeeing Conflicting Order warnings in your Terminal whilst building your Gatsby project is not uncommon, but fortunately is very easy to fix (or suppress) too.
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.
Local SEO is a Technical Problem Too. Local SEO is a Technical Problem Too
Local SEO is a technical problem too, covering crawlable content, structured pages, performance, metadata, internal links, and reliable local signals.
Gatsby & GraphQL: Nodes vs. Edges. Gatsby & GraphQL: Nodes vs. Edges
Gatsby and GraphQL nodes versus edges explained through graph theory, query shape, pagination, and why Gatsby data often exposes both structures.
HTML Video and the preload Attribute. HTML Video and the
preloadAttributeUnderstand the HTML video preload attribute, including auto, metadata, none, browser behaviour, bandwidth cost, playback expectations, and trade‑offs.
