Tag: javascript

Ryan Dahl & Node.js: The Man Who Changed Server-Side JavaScript Forever

Few people can claim to have fundamentally changed the trajectory of web development. Ryan Dahl is one of them. In 2009, a quiet, intense presentation at JSConf EU planted a seed that grew into Node.js — a runtime that...

Pandas for JavaScript: DataFrames, Columnar Memory & Apache Arrow

Architectural comparison of JavaScript DataFrame libraries: Node-Polars, Arquero, Danfo.js, columnar Apache Arrow memory layouts, and SIMD performance.

JavaScript New Features from ES5 to ESNext

ECMAScript 5 (2009) Strict Mode ('use strict'): Enforces better coding practices. Array Methods: forEach, map, filter, reduce, some, every. Object Methods: O...

ES2023 Deep Dive: Change Array by Copy, findLast, Symbols as WeakMap Keys & Hashbangs

Comprehensive technical guide to ECMAScript 2023 (ES2023): Change Array by Copy (toSorted, toReversed, toSpliced, with), findLast, Symbols as WeakMap keys, and Hashbang grammar standardization.

ES2022 Deep Dive: Private Class Fields, Top-Level Await, Object.hasOwn & Error.cause

Comprehensive technical guide to ECMAScript 2022 (ES2022): private class fields (#), static initialization blocks, Object.hasOwn(), Error.cause chaining, Array.prototype.at(), and Top-Level await.

ES2021 Deep Dive: String.replaceAll, Logical Assignment Operators, Promise.any & WeakRef Architecture

Architectural deep dive into ECMAScript 2021 (ES12): String.prototype.replaceAll, logical assignment operators, Promise.any concurrency, and WeakRef memory management.

What are closures in JavaScript?

A closure in JavaScript is a function that retains access to its lexical scope, even after the outer function in which it was defined has finished executing....

JavaScript - let, const, var

In JavaScript, var, let, and const are three different ways to declare variables, each with distinct behaviors regarding scope, redeclaration, updating, and ...

Silicon Valley JavaScript History: Bitovi, JavaScriptMVC & the Reactive Architecture of CanJS

Historical and architectural analysis of Bitovi, JavaScriptMVC, and CanJS observable reactivity during the 2013 Silicon Valley frontend era.

PhantomJS + Jasmine vs Selenium Web Driver

Recently I started using phantomjs, which is a headless browser based on web-kit, for automated JavaScript testing. Now when I was playing around with Seleni...

The Full-Stack JavaScript Revolution: Early Node.js & Event Loops

Architectural retrospective on the full-stack JavaScript revolution: early Node.js on Ubuntu, Express 3, libuv event loops, and job scheduling evolution.

Google Dart, WebAssembly & The Resilience of JavaScript: An Architectural Retrospective

Architectural retrospective on Google Dart, the 2011 JavaScript crisis, the TC39 ECMAScript renaissance, Dart's rebirth as Flutter, and how WebAssembly solved multi-language web runtimes.

Douglas Crockford & The Evolution of JavaScript: JSON, JSLint & The Good Parts

Deep technical analysis of Douglas Crockford's monumental impact on web engineering: the discovery and standardization of JSON, building JSLint static analysis, and the philosophy of The Good Parts.

The Audacious Genius of Cappuccino: How Objective-J and 280 North Redefined What Was Possible on the Web

In April 2012, I complained about a shell script error when testing the Cappuccino framework on Ubuntu. Looking back, here is a celebration of 280 North, Objective-J, and the audacious pioneers who proved the web browser could run desktop-grade applications.