microsoft/TypeScript on Hacker News

…`strictNullChecks` in general has a huge hole in that it allows uninitialized properties ( https://github.com/Microsoft/TypeScript/issues/8476 ).

comment by realharo · 2017-02-22 · in Announcing TypeScript 2.2

▲ 1

TypeScript: Mixin classes

story by gokhan · 2017-01-30 · 0 comments

…"A possible FIX if you really want two types to be incompatible is to add a 'brand' member"... https://github.com/Microsoft/TypeScript/wiki/FAQ#type-system...

comment by automatwon · 2017-01-08 · in Returning to JavaScript After 5 Years

…both the == and === operators. A problem beyond type-safety is the confusing semantics of 'this': https://github.com/Microsoft/TypeScript/wiki/'this'-in-TypeS...

comment by automatwon · 2017-01-07 · in Returning to JavaScript After 5 Years

It's not possible to add extension methods to TS in a way that would be usable in practice. https://github.com/Microsoft/TypeScript/issues/9 has a long discussion of the problems with trying to do this.

comment by RyanCavanaugh · 2016-12-08 · in Announcing TypeScript 2.1

…This is the one answer I was looking for. And it seems to be very recent, committed Nov 7 for 2.1: https://github.com/Microsoft/TypeScript/pull/12160/commits/7... Looking at the discussion on GitHub for the issue that lead to this commit…

comment by Noseshine · 2016-12-08 · in Announcing TypeScript 2.1

…programming though, the above list should cover the vast majority of interesting features. [1]: https://github.com/Microsoft/TypeScript/issues/1213 [2]: https://hackage.haskell.org/package/vinyl-0.5.2/docs/Data-Vi... [3]:…

comment by spion · 2016-12-08 · in Announcing TypeScript 2.1

…there. Turns out they implement two case statements, and handle every possible control structure. https://github.com/Microsoft/TypeScript/issues/1664

comment by euroclydon · 2016-12-07 · in Announcing TypeScript 2.1

…supports a subset of what Closure does - so anything here should be portable between the two: https://github.com/Microsoft/TypeScript/wiki/JSDoc-support-i...

comment by nevir · 2016-12-06 · in Closure Compiler in JavaScript

…supporting the ES7 "spread" operator, since row variable is the obvious typed counterpart to that: https://github.com/Microsoft/TypeScript/issues/2103 but they ended up implementing just the operator, without a way to reflect it in a…

comment by int_19h · 2016-11-27 · in Typed, modular macros for OCaml

Yes, I believe it uses https://www.npmjs.com/package/types-registry now, going by https://github.com/Microsoft/TypeScript/blob/a8ef77c3/src/se...

comment by Arnavion · 2016-11-22 · in Visual Studio Code 1.7.2

Seems to be missing C# ( https://github.com/dotnet/roslyn ) with 6550 stars and Typescript ( https://github.com/Microsoft/TypeScript ) with 16876 stars.

comment by CurtHagenlocher · 2016-11-21 · in Most starred interpreters and compilers on GitHub

▲ 2

Mapped Types are now in TypeScript master branch

story by eDameXxX · 2016-11-14 · 0 comments

…types you provide in JSDoc[1] so you will see benefits simply by using VS Code in most cases. [1]: https://github.com/Microsoft/TypeScript/wiki/JSDoc-support-i...

comment by svieira · 2016-11-03 · in Visual Studio Code 1.7.1

…3 yet, and might still be dropped. That said, there is a TS issue tracking adding support for it: https://github.com/Microsoft/TypeScript/issues/2103 .

comment by bcherny · 2016-10-12 · in Yarn – A new package manager for JavaScript

…but many of their open source projects use unadulterated OS licenses. Typescript is Apache 2: https://github.com/Microsoft/TypeScript/blob/master/LICENSE.... Visual Studio Code is MIT: https://github.com/Microsoft/vscode/blob/master/LICENSE…

comment by TAForObvReasons · 2016-10-12 · in Facebook React.js License

I'm fixing that in https://github.com/Microsoft/TypeScript/pull/11267

comment by bradleyayers · 2016-09-30 · in If TypeScript is so great, how come all notable ReactJS projects use Babel?

▲ 2

Typescript silently dropping support for Visual Studio 2013

story by polskibus · 2016-09-29 · 0 comments

And a whole lot more. https://github.com/Microsoft/TypeScript/wiki/Roadmap has a summary of the most important changes.

comment by wereHamster · 2016-09-22 · in Announcing TypeScript 2.0

…been released yet, but it's super confusing. [1]: https://www.npmjs.com/package/typescript [2]: https://github.com/Microsoft/TypeScript/releases

comment by Toddward · 2016-09-20 · in If TypeScript is so great, how come all notable ReactJS projects use Babel?

…expensive tools that everyone have to buy into just to communicate with you once you are locked in. https://github.com/Microsoft/TypeScript is uh... right there. Check the license. Visual Studio code runs Textmate snippets and has a very…

comment by KirinDave · 2016-09-20 · in If TypeScript is so great, how come all notable ReactJS projects use Babel?

…of the method Agreed! There's an open issue that addresses that scenario (and a ton of others): https://github.com/Microsoft/TypeScript/issues/6606

comment by saguiar · 2016-09-20 · in If TypeScript is so great, how come all notable ReactJS projects use Babel?

> I use Typescript 2.0 RC No need to use the RC any more. 2.0 is out! https://github.com/Microsoft/TypeScript/wiki/What's-new-in-T...

comment by ken47 · 2016-09-20 · in If TypeScript is so great, how come all notable ReactJS projects use Babel?

…will be returned by Redux's "mapStateToProps" function, and sometimes this object can be big. [0] https://github.com/Microsoft/TypeScript/wiki/What's-new-in-T... [1] https://github.com/Microsoft/TypeScript/wiki/What's-new-in-T...

comment by mpawelski · 2016-09-20 · in If TypeScript is so great, how come all notable ReactJS projects use Babel?

…apps, VS Code and TypeScript itself are pretty good examples. https://github.com/Microsoft/vscode https://github.com/Microsoft/typescript

comment by softawre · 2016-09-15 · in Angular 2 Final Released

There are a lot of other new features as well that were introduced in the 2.0-beta release: https://github.com/Microsoft/TypeScript/wiki/What's-new-in-T...

comment by freditup · 2016-08-30 · in Announcing TypeScript 2.0 RC

…subset of TS. Are your explanations about Flow's strictness really applicable to this subset? See https://github.com/Microsoft/TypeScript/blob/master/doc/spec... > Here's an example that came up just last week: [...] (Note: This is not a…

comment by thorn0asdf · 2016-08-02 · in Flowtype 0.30 adds support for Windows

▲ 220

Love for TypeScript

story by svieira · 2016-07-30 · 162 comments

…it as a deb package or Mac OS X pkg etc. without having to first install node.js/npm [1]: https://github.com/Microsoft/TypeScript/blob/master/src/comp... [2]: https://discuss.as3lang.org/t/the-case-when-you-dont-want-no...

comment by zwetan · 2016-07-27 · in Bringing ChakraCore to Linux and OS X

Uhh, yes it is meant to be just annotations + ES6. https://github.com/Microsoft/TypeScript/wiki/TypeScript-Desi... The exclamination is a forced cast to another type, just like "x as otherType". So this is still in the same category.

comment by spion · 2016-07-12 · in Announcing TypeScript 2.0 Beta

…`undefined` are subtypes of `any`, so you can still gradually convert to typescript. (according to https://github.com/Microsoft/TypeScript/pull/7140 )

comment by legulere · 2016-07-11 · in Announcing TypeScript 2.0 Beta

Another interesting addition is discriminated union types: https://github.com/Microsoft/TypeScript/pull/9163 This will greatly facilitate a more functional style of programming.

comment by ken47 · 2016-07-11 · in Announcing TypeScript 2.0 Beta

There are a _lot_ more features than non-nullable types: https://github.com/Microsoft/TypeScript/wiki/What%27s-new-in...

comment by spankalee · 2016-07-11 · in Announcing TypeScript 2.0 Beta

…compiler converts your html templates into TS, and then regular TS typechecking can take over. See https://github.com/microsoft/typescript/issues/6508 (and the GIF!)

comment by robwormald · 2016-06-29 · in Angular 2 – Best Practises

…if I parens on the typeof check, it no longer works: if (typeof(x) === "string") I opened an issue: https://github.com/Microsoft/TypeScript/issues/9391 Thanks for the help!

comment by jdmichal · 2016-06-28 · in Migrating a 10,000-line legacy JavaScript codebase to TypeScript

▲ 2

TypeScript just got discriminated unions

story by iamkeyur · 2016-06-16 · 0 comments

I agree, ADTs would be nice. In fact, we have a pull request out for it right now. [1] :) [1]: https://github.com/Microsoft/TypeScript/pull/9163

comment by DanRosenwasser · 2016-06-15 · in The Future of TypeScript Declaration Files

…https://github.com/golang/go/graphs/contributors https://github.com/scala/scala/graphs/contributors https://github.com/Microsoft/TypeScript/graphs/contributors

comment by bcherny · 2016-06-07 · in Show HN: New calendar app idea

What currently is in TypeScript: https://github.com/Microsoft/TypeScript/wiki/What's-new-in-T...

comment by DJCordhose · 2016-06-07 · in Flow vs. Typescript

Not equivalent - the TS compiler currently does not actually enforce the types in a JS file. See https://github.com/Microsoft/TypeScript/issues/4790#issuecom... The feature of parsing JSDoc comments is currently only used for providing…

comment by Arnavion · 2016-06-06 · in Flow vs. Typescript

…as types, just more specific, so they're important if one is trying to draw a comparison. [1] https://github.com/Microsoft/TypeScript/wiki/Roadmap#20 [2] https://github.com/Microsoft/TypeScript/milestones

comment by whatever_dude · 2016-06-06 · in Flow vs. Typescript

…} Is functionally identical to: function foo(a: string, b: number): string { return a + b; } See: https://github.com/Microsoft/TypeScript/issues/4790

comment by joshuacc · 2016-06-06 · in Flow vs. Typescript

…to embed inot a lot of your files, so a reasonable effort to unwind, that matters. If you compare: https://github.com/Microsoft/TypeScript/milestones and https://github.com/Microsoft/TypeScript/wiki/Roadmap to the lack of information on…

comment by Bakesteve · 2016-06-06 · in Flow vs. Typescript

Both differences in this presentation are addressed in TypeScript 2.0 https://github.com/Microsoft/TypeScript/wiki/Roadmap#20

comment by msoad · 2016-06-06 · in Flow vs. Typescript

…an aim of TS to make it easier to continue using JS for those who prefer a half-way house, see: https://github.com/Microsoft/TypeScript/issues/4789

comment by danielearwicker · 2016-06-06 · in I Was Wrong About TypeScript

see https://github.com/Microsoft/TypeScript/issues/8275

comment by robwormald · 2016-06-06 · in I Was Wrong About TypeScript

…compiler will* accommodate you by compiling your JS alongside your TS code.[1] * TypeScript 1.8 [1] https://github.com/Microsoft/TypeScript/issues/4792

comment by ihsw · 2016-06-06 · in I Was Wrong About TypeScript

…[1] c nonullable types [2] [1] https://www.typescriptlang.org/docs/handbook/advanced-types.... [2] https://github.com/Microsoft/TypeScript/pull/7140 As a Scala developer I like Typescript a lot. Which is a first for me in browser…

comment by joostdevries · 2016-06-05 · in I Was Wrong About TypeScript

…i'd be convenient that any language being used for large projects would support this feature. [1] https://github.com/Microsoft/TypeScript/pull/7140

comment by randiantech · 2016-05-30 · in Null References: The Billion Dollar Mistake – Tony Hoare (2009) [video]

…and the tree reuse, and so has benefitted from the architecture improvements for service work. [1] https://github.com/Microsoft/TypeScript/pull/8010

comment by wwwigham · 2016-05-13 · in Anders Hejlsberg on Modern Compiler Construction [video]