TypeScript

@typescript424k followers

TypeScript is a language for application-scale JavaScript development. It's a typed superset of JavaScript that compiles to plain JavaScript.

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1Mar 11, '25Today we're thrilled to announce our effort to port the TypeScript compiler and language service to native code, gaining a 10x speed boost in build times and editor responsiveness!30.8×1.3M6.7k1.3k751
2Mar 16, '23TypeScript 5.0 is here! 🎉🎉 Learn about what's new and try it today!19.2×819k4.7k1.4k368
3Aug 20, '20🥳🎉 TypeScript 4.0 is here! 🎉🥳 Read up on what's new and get it today!13.8×05.4k2.2k107
4Nov 5, '19TypeScript 3.7 is finally here! ✔ Optional Chaining & Coalescing ✔ Assertion Functions ✔ .d.ts Emit From .js Files ✔ Smarter Control Flow Analysis ✔ Flatter Error Messages and 13.5×05k2.1k109
5Jul 30, '18🎉 TypeScript 3.0 is here!!!! 🎉 Check out project references, extractable parameter lists, easier errors, and more!13.3×04.3k2.5k65
6Mar 9, '22Could we have TypeScript with no build step? Could we have types in JavaScript? Maybe! We're exploring bringing optional type syntax into the JavaScript language!12.7×05k1.3k249
7Jun 1, '23TypeScript 5.1 is now out! Now with: - smarter checks for undefined-returning functions - no restrictions between getter/setter types - better checks against JSX tags - linked edit11.7×502k1.5k35997
8May 12, '23Today the TypeScript team is releasing a new VS Code extension named Deopt Explorer! This tool can help find polymorphism and deoptimizations in your code, and it's already helped 9.9×425k2.9k606846
9May 22, '25Today we're announcing previews of the native port of TypeScript! These nightly previews will be available on npm and the VS Code marketplace! npm install -D @​typescript/native-pr8.2×352k2.6k512503
10Feb 20, '20TypeScript 3.8 has arrived! 🎉 Now with - type-only imports/exports - private fields - 'export * as ns' syntax - top-level 'await' - convert to template string - call hierarchy and8.0×03.1k1.2k74
11Sep 2, '22types7.6×04.5k41027
12Aug 24, '23TypeScript 5.2 is now here! 🎉 Now faster with - 'using' & explicit resource management - decorator metadata - easier tuple type notation - better object completions - the inli7.3×311k2k523131
13Nov 20, '23Today we released TypeScript 5.3! Now bringing: - new narrowing improvements - more correctness checks - import attributes - handy new editor features - lots of optimizations and l7.2×308k1.6k375126
14Mar 6, '24Announcing TypeScript 5.4! 📢 Now with: ✅ Smarter control-flow analysis in closures ✅ The `NoInfer` utility type ✅ Broader support for bundlers and runtimes ✅ Quick fixes for missi6.6×283k1.1k262112
15Jan 26, '23TypeScript 5.0 Beta is now out to try! 🚀 Now with ES decorators, better modes for modules in Node & bundlers, new inference tools for library authors, JSDoc support - and last6.3×270k1.4k36865
16Oct 1, '19TypeScript turned 7 today! 🎂🎉 What better way to celebrate than with the TypeScript 3.7 beta? Now with... ➡ Optional Chaining ➡ Nullish Coalescing ➡ Assertion Functions ➡ Smarter6.3×02.4k92035
17Oct 3, '23TypeScript 5.3 beta just went out! Now slimmer and faster, with lots of new narrowing improvements, correctness checks, import attributes, and more - so try it out now!6.0×256k66914136
18Sep 27, '18TypeScript 3.1 is out! Now with mapped tuples, easier property declarations on functions, typesVersions, and some handy async/await refactorings! Read all about it on our blog!5.6×02k94342
19Jun 20, '24TypeScript 5.5 is now available! 🎉✨ Now with ✅ Inferred Type Predicates ✅ RegEx syntax checks ✅ The JSDoc @‍import Tag ✅ ${configDir} for easier tsconfig inheritance ✅ --isolatedD5.3×227k1.9k476161
20Mar 29, '19TypeScript 3.4 is available! Now with: - fast incremental builds - smarter inference for function composition - better support for immutable patterns - globalThis support - a new r4.8×01.9k79627
21Aug 26, '21TypeScript 4.4 is here! Now with ✔ Smarter Control Flow Analysis ✔ Symbol & Pattern Indexers ✔ Stricter Checks ✔ Speed Improvements ✔ Inlay Hints ✔ Revamped --help and more! Re4.5×02k55067
22Apr 18, '23TypeScript 5.1 Beta is now available to try, with - smarter checks for undefined-returning functions - no restrictions between getter/setter types - customizable tag checks for JSX4.3×186k82217437
23Mar 27, '18TypeScript 2.8 is here! Now featuring conditional types, mapped type improvements, organize imports, and much more!4.3×01.3k85814
24Nov 29, '18TypeScript 3.2 is here! Check out generic object spread/rest, strictBindCallApply, packaged tsconfig inheritance, BigInt, and more!4.2×01.5k70319
25Oct 1, '22TypeScript Turns Ten Today! 🎂🥳 We're humbled and grateful for our community and all that you've done! We wouldn't be here without you, and you've made these past 10 years amazing4.1×02.1k34944
26May 12, '20Ready for some faster type-checking and a smoother experience? Great, because 🎉 TypeScript 3.9 is now out! 🎉 Check out: - Improved Promise inference - // @‌ts-expect-error - Smar4.0×01.6k61425
27May 31, '18TypeScript 2.9 is out today! Tons of handy features like import() types, pretty output by default, JSON imports, and some slick editor support for renaming files & moving decla3.9×01.3k74420
28Aug 27, '18Congrats to our friends on the @babeljs team for releasing Babel 7.0! One of the biggest features in this release is support for transforming TypeScript! Read more here:3.9×01.5k63122
29Jan 31, '18🎉 TypeScript 2.7 is here and brings better types, better tooling, and better terminal support! 🎉 Come read up about what we've been working on!3.9×01.2k8131
30Jun 26, '20Our Beta for TypeScript 4.0 is out now! 🔪 Sophisticated Slicing and Dicing on Tuples 🦺 Safer Exception Handling ❓❓= New Operators 🔎 Control-flow on Class Properties 🏃‍♀️ Faster3.8×01.5k58635
31Aug 28, '19TypeScript 3.6 is now out! 🎉 Read up on better generator checking, better UX around Promises, editing improvements, a new TypeScript playground, and more!3.8×01.4k64527
32Nov 17, '21TypeScript 4.5 is now available! Read up on what's new including - Promise Improvements with the Awaited Type - lib Overrides in node_modules - New JSDoc Constructs - Snippet Compl3.7×01.6k47967
33May 29, '19TypeScript 3.5's out! Now with speed improvements, smarter union checks, extract to type alias, smart select, and more!3.6×01.3k59730
34Nov 19, '20Template literal types, recursive conditionals, stronger checks, and more! TypeScript 4.1 has now arrived! 🎉3.5×01.5k46035
35Dec 5, '18You know you've found your soulmate when you finish each other's sentences. What if *your editor* could do that? Introducing IntelliCode support for TypeScript & JavaScript, no3.5×01.5k45830
36Mar 5, '21We've just launched the new TypeScript Handbook, a fresh perspective on the types of code people write everyday. Find out what's changed on the TypeScript blog:3.4×01.3k400173
37Aug 31, '17TypeScript 2.5 is here! Check out optional catch variables, new refactorings for extracting functions, and more!3.3×01k6881
38Feb 23, '21TypeScript 4.2 is now out with ✔ Smarter Type Aliases ✔ Non-Trailing [...rest]s in Tuple Types ✔ Stricter Checks ✔ The "Declare Missing Function" Quick Fix and more! Try it today!3.2×01.4k47026
39Feb 14, '21Roses are red Violets are blue Type 'number' is not assignable to type '1 | 2' 💖3.1×01.8k2378
40Feb 22, '17TypeScript 2.2 is now available, and comes with even better tooling and more powerful types! Try it today!3.1×08246981
41Jul 12, '18TypeScript 3.0 is *almost here* and today we're announcing our release candidate! Give it a shot now and let us know what you think!3.1×01k59111
42Oct 1, '18Happy Monday and birthday to us! TypeScript's been public for 6 wonderful years as of today! 🎉🎂🎉 Thanks to everyone who's been a part of the community!3.1×01.6k3392
43Dec 7, '16The moment you've been awaiting is here - we're proud to announce TypeScript 2.1!3.1×06847440
44Jan 10, '20We just released TypeScript 3.8 Beta! Try out our new features like type-only imports, and ECMAScript features like private fields, `export * as foo`, top-level 'await', and more!3.1×01.2k46121
45Apr 25, '24Announcing TypeScript 5.5 Beta! 📣 Now with type predicate inference, more type narrowing, an @‍import tag for JSDoc, the --isolatedDeclarations flag, performance & reliability3.0×129k85518344
46May 24, '22TypeScript 4.7 is now out, bringing ✅ Support for ES modules in Node.js ✅ Improved inference and narrowing ✅ More powerful conditional types ✅ Go to Source Definition ✅ Smarter Org3.0×01.3k36256
47Sep 9, '24🚀TypeScript 5.6 is now available! 🚀 Now with ✅ New syntactic nullish/truthy checks ✅ Iterator helper methods & strictness checks ✅ Region-prioritized checking in editors ✅ Fl2.9×125k1.1k275110
48May 26, '21TypeScript 4.3 is now available! Check out - Different get/set Types - Smarter Narrowing - 'override' Checks - #⁠private Elements - Smarter/Faster '--incremental' and '--watch' - A2.9×01.2k39841
49Aug 9, '23The Release Candidate of TypeScript 5.2 is now out to try! Test it out and let us know if you run into any issues!2.9×122k62613328
50Jan 31, '19TypeScript 3.3 is here with easier calling for union types, faster builds for composite projects, and broader support for editing JavaScript!2.8×098350714
51Jun 30, '23We just released TypeScript 5.2 Beta! Check out - 'using' Declarations - Decorator Metadata - Easier Tuple Type Notation - The "Inline Variable" Refactoring - Comma Completions in 2.7×117k66719132
52Nov 15, '22TypeScript 4.9 has landed, and it's a release that's guaranteed to satisfy! Now bringing ✅ A new 'satisfies' operator ✅ Improved narrowing with 'in' ✅ More efficient file-watching 2.7×01.2k31955
53Aug 4, '20New site, who ‘dis? Today we've launched the new TypeScript website and branding, find out what's new by @orta on the TypeScript blog: - -2.6×01.1k31030
54Oct 1, '21Happy birthday to us! 🎂 What better way to celebrate 9 years of being public than a beta release? Try out TypeScript 4.5 beta! Now bringing great new features including better sup2.5×01.3k24518
55Nov 3, '23The release candidate of TypeScript 5.3 is out - we're looking for feedback to make sure this release is as perfect as possible!2.5×106k4798833
56Sep 22, '16TypeScript 2.0 is here!2.4×04866040
57Oct 2, '17TypeScript turned 5 years old yesterday! 🎉 We hope you've enjoyed every second of the journey!2.4×09053890
58May 16, '19Our release candidate of TypeScript 3.5 is now available with significant performance improvements! Please try it out and give us your feedback!2.4×09563853
59Oct 31, '17IT'S ALIVE! TypeScript 2.6 is here with spooktacular strictFunctionTypes and other scary-good features!2.4×07514770
60Aug 6, '20Our Release Candidate for TypeScript 4.0 is now available! Check out what's in store and try it today!2.2×095229721
61Jun 27, '17TypeScript 2.4 is here and brings dynamic import(), string enums, and better inference! Read up on our release blog!2.1×05334840
62Feb 28, '25TypeScript 5.8 is now out, with ✅ Better Checks on return expressions ✅ Support for require(esm) in --module nodenext ✅ --libReplacement to speed up program loading ✅ --erasableSyn2.1×88k1k20787
63Oct 9, '24TypeScript 5.7 beta is now available to try! Read up on what's new today!2.0×85k57510745
64Nov 22, '24📢 TypeScript 5.7 is here! Now with ✅ Better checks for uninitialized variables ✅ Smarter tsconfig lookup in editors ✅ Improved startup time ✅ Stricter checks for JSON imports ✅ Ex1.9×83k1k22572
65Jul 26, '24TypeScript 5.6 Beta is now out with ✔️ Errors on Suspicious Truthish/Nullish Checks ✔️ Iterator Methods like `.map()` and `.filter()` ✔️ Error-Tolerant --build Mode ✔️ --noCheck ✔️1.9×82k79315262
66Jun 6, '24TypeScript 5.5 RC is now out to try! We're looking for feedback on inferred type predicates, JSDoc imports, regex checking, ${configDir}, isolatedDeclarations, build optimizations,1.9×82k50610940
67Nov 15, '18TypeScript 3.2 Release Candidate is now available to download! Try it today and let us know what you think!1.9×07073093
68Oct 24, '19TypeScript 3.7 RC is out! The final release is *so close* but we need your feedback on the RC to make it perfect! Read up more on our blog!1.9×075028110
69Sep 18, '20TypeScript 4.1 Beta is now available! Check out what's coming in this release, including template literal types, key remapping, recursive conditionals, and more!1.8×075925514
70Apr 28, '20The release candidate of TypeScript 3.9 is now available! Try it today and give us your feedback!1.8×078625013
71Apr 27, '17TypeScript 2.3 is out and now brings checking in .js files, default type args, async generators, more! Try it today!1.8×04744080
72Aug 25, '22TypeScript 4.8 is here! Now with ✅ Improved narrowing and inference ✅ Primitive-parsing from template string types ✅ --incremental/--watch perf improvements ✅ Lots of new correctne1.7×073923421
73Mar 27, '20Announcing 3.9 Beta! We've been focusing on polish, performance, stability, and correctness in this release and want your feedback! Check out our release notes and give it a shot!1.7×07472349
74Feb 22, '24The release candidate of TypeScript 5.4 is now ready to download! Read up on what's coming in TypeScript 5.4 👀1.7×73k53511144
75Aug 24, '21We've just launched the new revised @TypeScript homepage, aimed at helping new folks understand what TypeScript is, how it's useful and what it can do. Find out what's changed on t1.6×082415829
76Aug 1, '25TypeScript 5.9 is now available! 📣 This release brings: ✅ An updated tsc --init ✅ Type-checking for the new 'import defer' ✅ Actual summaries in more DOM APIs ✅ Expandable quick i1.6×69k1.3k25173
77Mar 15, '19The TypeScript 3.4 Release Candidate is here to try - let us know what you think!1.6×06222455
78Jan 23, '19Our release candidate of TypeScript 3.3 is out now - try it today and give us some feedback!1.5×05902373
79Oct 2, '18"The 3.x codebase will itself be written in TypeScript, and providing improved TypeScript support." - @evanyou We're so glad to see TypeScript benefit the @vuejs core team and comm1.5×06431917
80Apr 8, '22TypeScript 4.7 beta is out to try with lots of new features and improvements around type inference, narrowing analyses, ES module integration, and more!1.5×063515831
81May 4, '17VS @code 1.12 is now out with TypeScript 2.3! Now shipping with support for '// @ts-check' comments in JavaScript!1.4×04392980
82Jul 8, '25TypeScript 5.9 Beta just went out! Try it in your project and let us know what you think:1.4×60k6059755
83Jul 19, '19TypeScript 3.6 Beta is out now, and we're looking for lots of feedback on improvements to iterators & generators, our UX around Promises, as well as editor features! Try it tod1.4×05542238
84Sep 23, '22TypeScript 4.9 Beta is now available! Try out our improved 'in' operator narrowing, the new 'satisfies' operator, stricter 'NaN' checks, and more-efficient file-watching defaults!1.4×064614318
85Feb 7, '20Our Release Candidate for TypeScript 3.8 is out to try now! Read up on what's new and give us your feedback!1.4×053822410
86Nov 3, '20TypeScript 4.1 RC is here! As always, we'd appreciate if you could give it a try and let us know if you run into any issues!1.3×060315017
87Aug 23, '24The release candidate for TypeScript 5.6 is now available for testing! Give it a try today for more new checks, ways to speed-up your builds, new JS features, and more!1.3×56k4659333
88Mar 13, '25Starting soon! 📢 We've got a TypeScript AMA starting in just a few minutes (10am Pacific) on the TypeScript Discord!1.3×54k5828252
89May 16, '18TypeScript 2.9's Release Candidate is now out! Try it today and give us your feedback!1.2×04412310
90Jul 1, '21TypeScript 4.4 Beta is ready to try! We want your feedback on our new analyses, strictness flags, symbol/pattern indexers, --help menu revamp, perf improvements, and more, so read 1.2×052115311
92Nov 8, '24We just published the release candidate of TypeScript 5.7! Give it a shot and let us know what you think!1.2×51k4526842
93Jan 7, '19Curious about what we're working on for the next 6 months? We'd love to hear your thoughts about our plans!1.2×047315912
94May 12, '21Check out our Release Candidate of TypeScript 4.3! We just published the RC and are looking for feedback on new features, faster --watch builds, and more. Give it a try!1.1×04881397
95Aug 16, '19TypeScript 3.6 RC is now available to try out! Read up more in our blog post and give it a shot today!1.1×04391637
96Aug 12, '21TypeScript 4.4 is coming soon - but first, a release candidate! We've added new type analyses, editor features, speed-ups, and more, so download the RC and let us know what you thi1.0×046012314
97Jan 21, '22Check out our beta release of TypeScript 4.6! Now shipping with laxer super() checks in classes, better type narrowing, helpful errors in JavaScript files, and more!1.0×04631197
98Jul 25, '25TypeScript 5.9 RC is available to try! Let us know how it works before next week's stable release!1.0×43k4776642
99Apr 1, '21TypeScript 4.3 Beta is now ready to download, now with separate get/set types, the 'override' keyword, smarter template string types, private class members, editor improvements, an1.0×042811512
100Jan 29, '25We just released the beta for TypeScript 5.8! This release brings support for Node.js' require(ESM), smarter/safer checks for functions using advanced types, a few great optimizati1.0×41k5418731

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