TypeScript
TS Handbook and this article are great intros.
TypeScript can figure the return type out by looking at the return statements, so we can also optionally leave this off in many cases
You really shouldn’t use arrow function as class members. Arrow functions are duplicated in memory for each class instance, while proper method members are written once in your class’s prototype and shared between all instances.
anymeans “ignore the type”,unknownmeans “we don’t know the type”, which aren’t the same thing, and for better code you’d rather not know the type than ignore it.You can’t use
unknownas a simple replacement forany, that wouldn’t make sense.unkwnowncarries the implication that you should not use this variable other than passing it around. Or testing its type to get rid of the “unknown” state.Tuples are very useful for simulating multiple returns like React hooks, and other combined values that don't need string object keys
StREST - Set up tests for REST in seconds with YAML.
Fork TS Checker Webpack Plugin - Webpack plugin that runs typescript type checker on a separate process.
Tsickle - TypeScript to Closure Translator.
TypeScript ESLint - Monorepo for all the tooling which enables ESLint to support TypeScript.
ts-node-dev - Restarts target node process when any of required files changes (as standard node-dev) but shares Typescript compilation process between restarts.
dtslint - Tests a TypeScript declaration file for style and correctness.
SonarTS - Static code analyzer for TypeScript.
TypeScript Guidelines - Guideline to focus on how to write effective TypeScript with minimal effort.
typescript-json-schema - Generate json-schemas from your Typescript sources.
tslint-config-security - TSLint security rules.
Conditional Type Checks - Types for testing TypeScript types.
quicktype - Generate types and converters from JSON, Schema, and GraphQL.
typesync - Install missing TypeScript typings for dependencies in your package.json.
TSdx - Zero-config CLI for TypeScript package development.
OneFraction - React/ApolloGraphQL/Node/Mongo demo written in Typescript.
TypeCov - Track missing type coverage to ensure type safety.
type-coverage - CLI tool to check type coverage for typescript code.
TSDoc Standard - Standard but also use TypeScript on JS files with jsdoc.
ts-morph - TypeScript Compiler API wrapper. Provides an easier way to navigate and manipulate TypeScript and JavaScript code.
tsconfig-paths - Load node modules according to tsconfig paths, in run-time or via API.
ts-json-schema-generator - Generate JSON schema from your Typescript sources.
TSQuery - Allows you to query a TypeScript AST for patterns of syntax using a CSS style selector system.
TSDX - Zero-config CLI for TypeScript package development.
TypeScript Weekly - Best TypeScript links every week, right in your inbox. (Archive)
Rush Stack - Reusable tooling for large scale TypeScript monorepos. (Web)
Runtypes - Runtime validation for static types.
gts - TypeScript style guide, formatter, and linter by Google.
dts-gen - TypeScript Definition File Generator.
Nimbus - Centralized CLI for JavaScript and TypeScript developer tools.
Meta-Typing - Various functions and algorithms implemented purely with TypeScript's type system.
Type Puzzles - Learn TypeScript with Type Puzzles. (Code)
TypeScript Website Code - Website and web infrastructure for learning TypeScript. (Updates Issue)
Functional TypeScript - TypeScript standard for rock solid serverless functions.
TSJS-lib-generator - TypeScript and JavaScript lib generator.
TypeScript exercises - Collection of challenging TypeScript exercises.
sane-fmt - Opinionated code formatter for TypeScript and JavaScript.
Typescript Data Structures and Algorithms - Collection of classic data structures and algorithms implemented in Typescript with video lectures.
ts-migrate - Tool to automatically migrate JavaScript projects to TS. (HN)
PlayCode - JavaScript/TypeScript Playground.
TypeChallenges - Collection of TypeScript type challenges with online judge.
TypeScript Coverage Report - Node command line tool for generating TypeScript coverage reports.
ts-unused-exports - Finds unused exported symbols in your Typescript project.
ts-monorepo - Template for setting up a TypeScript monorepo.
ttypescript (Transformer TypeScript) - TypeScript tool to use custom transformers in the tsconfig.json.
json2ts - Generate TypeScript interfaces from JSON.
TypeScript Strictly Typed - Enable configurations for strictly typed TypeScript, ESLint or TSLint.
Type Gymnastics - Collection of wonderful TypeScript type gymnastics code snippets.
swc-node - Faster ts-node without type check.
vite-plugin-ts-checker - Vite plugin that runs TypeScript type checker on a separate process.
Unirepo - Extremely opinionated TypeScript monorepo tool.
DTS Bundle Generator - Small tool to generate a dts bundle from your ts code.
types-sync - Keep your types in sync with DefinitelyTyped - auto install/uninstall types for dependencies on postinstall.
TypeStat - Converts JavaScript to TypeScript and TypeScript to better TypeScript.
mini-typescript - Miniature model of the Typescript compiler, intended to teach the structure of the real Typescript compiler.
Shiki Twoslash - Static Code Samples for JS Projects. (Code)
esbuild-node-loader - Transpile TypeScript to ESM with Node.js loader.
dpdm - Static dependencies analyzer for your JavaScript and TypeScript projects.
ts-gyb - Generating native code interfaces from TypeScript.
TypeScript’s type hierarchy
