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Lesson 9.1 of the JavaScript tutorial — regex syntax basics: character classes, shorthand classes, quantifiers (greedy and lazy), anchors, groups, flags, and the methods (test, match, replace, split) that use them.
JavaScript Regex Syntax Basics: Patterns, Flags, and the Methods That Use Them Read More »
Lesson 8.4 of the JavaScript tutorial — JSON.parse and JSON.stringify in depth, the reviver/replacer callbacks, edge cases (undefined, Dates, BigInts, circular references, Map/Set), and JSON Lines for streaming.
JavaScript JSON Deep Dive: parse, stringify, Reviver/Replacer, and the Edge Cases Read More »
Lesson 8.3 of the JavaScript tutorial — the JavaScript Date object’s quirks (0-indexed months, parsing gotchas), the modern Intl API for formatting dates, numbers, currencies, relative time, lists, and plurals across locales.
JavaScript Dates and Intl: Working with Time, Time Zones, and Internationalization Read More »
Lesson 8.2 of the JavaScript tutorial — the IEEE 754 mechanics behind number, why 0.1+0.2 isn’t 0.3, the safe-integer threshold, when to reach for BigInt, the Math namespace, and patterns for clamp/round/sum.
JavaScript Numbers, Math, and BigInt: IEEE 754, Precision, and When to Use What Read More »
Lesson 8.1 of the JavaScript tutorial — the string methods worth knowing, template literals and tagged templates, the UTF-16 surrogate-pair gotcha, Intl.Segmenter for correct grapheme handling, and practical string patterns.
Lesson 6.1 of the JavaScript tutorial — ES modules in depth: named vs default exports, dynamic import(), top-level await, live bindings, the ESM vs CommonJS comparison, and the conventions every modern codebase follows.
JavaScript ES Modules Explained: import, export, and the Modern Module System Read More »
Lesson 5.3 of the JavaScript tutorial — async/await in depth: what async/await actually do, error handling with try/catch, the sequential-vs-parallel trap, Promise.all/allSettled/race/any, top-level await, and the patterns experienced developers reach for.
JavaScript async/await Explained: How It Really Works (and How to Use It Well) Read More »
Lesson 5.1 of the JavaScript tutorial — what callbacks are, the error-first Node.js convention, callback hell and the pyramid of doom, why Promises were such a relief, and where callbacks still make sense.
JavaScript Callbacks and the Pre-Promise Era: Why Async Needed Promises Read More »
Lesson 2.2 of the JavaScript tutorial — function parameters in depth: default values, rest parameters, destructuring in the signature, the legacy arguments object, and the practical rules for designing clean function APIs.
JavaScript Function Parameters and Arguments: Defaults, Rest, Destructuring Read More »
Lesson 2.1 of the JavaScript tutorial — the three function syntaxes (declaration, expression, arrow) and their differences: hoisting, this binding, arguments, constructibility, and the modern rules for when to use which.
JavaScript Function Declarations vs Expressions vs Arrows: When to Use Which Read More »