Blog — page 5

Articles 97–105 of 105.

TypeScriptMarch 10, 20262 min read
TypeScript Strict Mode: What Each Flag Does and Why to Turn It On
A flag-by-flag guide to strict mode, including noUncheckedIndexedAccess, and the order to enable them on real code.
The TweakPad Team
TypeScriptMarch 3, 20261 min read
TypeScript Generics: A Practical Guide From First Principles
Generics explained by what problem they solve, with constraints, defaults, inference and the conditional types you meet in real codebases.
The TweakPad Team
TypeScriptFebruary 24, 20262 min read
TypeScript Utility Types: The 12 That Do Real Work
Partial, Pick, Omit, Record and the rest — what each is for, and the composition patterns that replace duplicate types.
The TweakPad Team
JavaScriptFebruary 17, 20262 min read
The JavaScript Event Loop: Microtasks, Macrotasks and Why Order Matters
How the event loop schedules work, why promises run before setTimeout, and how to stop long tasks freezing your page.
The TweakPad Team
JavaScriptFebruary 10, 20262 min read
JavaScript Closures Explained With Examples You Will Actually Meet
What a closure is, why the classic loop bug happens, and three patterns closures enable: memoisation, private state, currying.
The TweakPad Team
JavaScriptFebruary 3, 20262 min read
Optional Chaining and Nullish Coalescing: The Right Way to Handle Missing Data
How ?. and ?? work, why ?? is not the same as ||, and the short-circuit behaviour that surprises people. With practical patterns for API data.
The TweakPad Team
JavaScriptJanuary 28, 20262 min read
JavaScript Equality: ==, === and Object.is Compared
Why 0 == "" is true, NaN !== NaN, and when Object.is differs from strict equality — a model, not memorised rules.
The TweakPad Team
JavaScriptJanuary 20, 20262 min read
Async/Await in JavaScript: What It Actually Does
How async/await really works, the sequential-await mistake that costs 10x, and how to handle errors and parallel work.
The TweakPad Team
JavaScriptJanuary 12, 20263 min read
JavaScript Array Methods: A Practical Guide to the 20 You Actually Use
Which array methods mutate, which return new arrays, and which to reach for — with performance notes and real examples.
The TweakPad Team

TypeScript Strict Mode: What Each Flag Does and Why to Turn It On

TypeScript Generics: A Practical Guide From First Principles

TypeScript Utility Types: The 12 That Do Real Work

The JavaScript Event Loop: Microtasks, Macrotasks and Why Order Matters

JavaScript Closures Explained With Examples You Will Actually Meet

Optional Chaining and Nullish Coalescing: The Right Way to Handle Missing Data

JavaScript Equality: ==, === and Object.is Compared

Async/Await in JavaScript: What It Actually Does

JavaScript Array Methods: A Practical Guide to the 20 You Actually Use

TypeScript Strict Mode: What Each Flag Does and Why to Turn It On

TypeScript Generics: A Practical Guide From First Principles

TypeScript Utility Types: The 12 That Do Real Work

The JavaScript Event Loop: Microtasks, Macrotasks and Why Order Matters

JavaScript Closures Explained With Examples You Will Actually Meet

Optional Chaining and Nullish Coalescing: The Right Way to Handle Missing Data

JavaScript Equality: ==, === and Object.is Compared

Async/Await in JavaScript: What It Actually Does

JavaScript Array Methods: A Practical Guide to the 20 You Actually Use