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Thoughts on AI, software, and life. Short notes and long-form writing.

TypeScript Control Flow, Record Dictionaries, and Array Iteration: for, for...of, for...in, forEach, and map

This note answers a practical question: when working with objects, arrays, dictionaries, and loops, which syntax should you use and why?

TypeScriptMay 23, 2026

TypeScript Foundations: Types, Compilation, and Variable Declarations

TypeScriptJavaScriptProgramming Basics

TypeScript helps move many JavaScript mistakes from runtime to development time. JavaScript is flexible, but that flexibility can hide problems until the code is executed: unexp...

TypeScriptMay 23, 2026

TypeScript Functions, Default Parameters, Rest Parameters, and async/await

TypeScriptFunctionsAsync Await

Functions are one of the most common places to use TypeScript types. Parameter types, return types, and async return types should usually be explicit.

TypeScriptMay 23, 2026

TypeScript interface, type, abstract class, and Generics Compared

TypeScriptGenericsInterfaces

`interface`, `type`, and `abstract class` can all describe structure, but they are not interchangeable in every situation.

TypeScriptMay 23, 2026

TypeScript Objects, Record Dictionaries, Classes, and Abstract Classes

TypeScriptClassesRecord

TypeScript can describe not only variables, but also object structures, dictionary maps, and object-oriented models.