Javascript terms

5 terms of 1444 total

⚡ From DOM manipulation to async superpowers

JavaScript has evolved from a scripting curiosity into a full-stack language powering browsers, servers, and everything in between. This category covers the language core — closures, prototypes, async patterns, the event loop, modern ES2024+ features — as well as runtime behaviour that trips up developers at every experience level. Understanding JavaScript deeply means fewer bugs and more confident code.

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Import Maps ES2020

Import maps let browsers resolve bare module specifiers (import 'lodash') without a bundler — mapping module names to URLs in a JSON script tag.

2mo ago javascript intermediate

IntersectionObserver API HTML5

IntersectionObserver fires when an element enters or leaves the viewport — the modern way to implement lazy loading, infinite scroll, and scroll-triggered animations.

2mo ago javascript intermediate

Implicit Globals & strict mode ES5

Assigning to an undeclared variable in non-strict mode silently creates a global — use 'use strict' or ES modules to prevent accidental global pollution.

2mo ago javascript intermediate

IndexedDB ES2015

Browser-native NoSQL database for offline-capable PHP web apps — stores structured data that survives page reloads, complements service workers.

2mo ago javascript advanced

Intl API ES2015

The built-in JavaScript internationalisation API — format numbers, dates, currencies, relative times, and lists correctly for any locale without external libraries.

2mo ago javascript intermediate