René's URL Explorer Experiment


Title: Bring back return type narrowing + fixes by gabritto · Pull Request #61359 · microsoft/TypeScript · GitHub

Open Graph Title: Bring back return type narrowing + fixes by gabritto · Pull Request #61359 · microsoft/TypeScript

X Title: Bring back return type narrowing + fixes by gabritto · Pull Request #61359 · microsoft/TypeScript

Description: TypeScript is a superset of JavaScript that compiles to clean JavaScript output. - Bring back return type narrowing + fixes by gabritto · Pull Request #61359 · microsoft/TypeScript

Open Graph Description: Fixes #33014. Fixes #33912. This PR brings back conditional and indexed access return type narrowing from #56941, but with a few updates. The main motivation behind those updates is described in ht...

X Description: Fixes #33014. Fixes #33912. This PR brings back conditional and indexed access return type narrowing from #56941, but with a few updates. The main motivation behind those updates is described in ht...

Opengraph URL: https://github.com/microsoft/TypeScript/pull/61359

X: @github

direct link

Domain: github.com

route-pattern/_view_fragments/voltron/pull_requests/show/:user_id/:repository/:id/pull_request_layout(.:format)
route-controllervoltron_pull_requests_fragments
route-actionpull_request_layout
fetch-noncev2:3cecff89-258c-f673-7a1a-7e9cef26ac31
current-catalog-service-hashae870bc5e265a340912cde392f23dad3671a0a881730ffdadd82f2f57d81641b
request-idB14C:7F6D9:120BD:18EC1:6A601C7C
html-safe-nonce26f39848d28ccd539b73275c92dfe64261fbd0f230687d684d7b457b5f1ce356
visitor-payloadeyJyZWZlcnJlciI6IiIsInJlcXVlc3RfaWQiOiJCMTRDOjdGNkQ5OjEyMEJEOjE4RUMxOjZBNjAxQzdDIiwidmlzaXRvcl9pZCI6IjYzNDY5NTE3Mjk0ODI4MzMwMjAiLCJyZWdpb25fZWRnZSI6ImlhZCIsInJlZ2lvbl9yZW5kZXIiOiJpYWQifQ==
visitor-hmac2d58cf2975bb9d9c86303c84ab06031dd1c8f896685d320cb787da1a900ffe5f
hovercard-subject-tagpull_request:2374737243
github-keyboard-shortcutsrepository,pull-request-list,pull-request-conversation,pull-request-files-changed,copilot
google-site-verificationApib7-x98H0j5cPqHWwSMm6dNU4GmODRoqxLiDzdx9I
octolytics-urlhttps://collector.github.com/github/collect
analytics-location///voltron/pull_requests_fragments/pull_request_layout
fb:app_id1401488693436528
apple-itunes-appapp-id=1477376905, app-argument=https://github.com/_view_fragments/voltron/pull_requests/show/microsoft/TypeScript/61359/pull_request_layout
twitter:imagehttps://opengraph.githubassets.com/4ac3d9ebbe13eec46a2a10782f553f45f9eee7b56da384d37b968f6f4fc136e7/microsoft/TypeScript/pull/61359
twitter:cardsummary_large_image
og:imagehttps://opengraph.githubassets.com/4ac3d9ebbe13eec46a2a10782f553f45f9eee7b56da384d37b968f6f4fc136e7/microsoft/TypeScript/pull/61359
og:image:altFixes #33014. Fixes #33912. This PR brings back conditional and indexed access return type narrowing from #56941, but with a few updates. The main motivation behind those updates is described in ht...
og:image:width1200
og:image:height600
og:site_nameGitHub
og:typeobject
og:author:usernamegabritto
hostnamegithub.com
expected-hostnamegithub.com
None7e86a727ba4abf81d0638c5ead57286c17d3b2706f57813445c4316d8e848673
turbo-cache-controlno-cache
go-importgithub.com/microsoft/TypeScript git https://github.com/microsoft/TypeScript.git
octolytics-dimension-user_id6154722
octolytics-dimension-user_loginmicrosoft
octolytics-dimension-repository_id20929025
octolytics-dimension-repository_nwomicrosoft/TypeScript
octolytics-dimension-repository_publictrue
octolytics-dimension-repository_is_forkfalse
octolytics-dimension-repository_network_root_id20929025
octolytics-dimension-repository_network_root_nwomicrosoft/TypeScript
turbo-body-classeslogged-out env-production page-responsive
disable-turbofalse
browser-stats-urlhttps://api.github.com/_private/browser/stats
browser-errors-urlhttps://api.github.com/_private/browser/errors
releasef13d8ac548fb76838b3d703c7fe2100887547d0e
ui-targetfull
theme-color#1e2327
color-schemelight dark

Links:

Skip to contenthttps://github.com/microsoft/TypeScript/pull/61359#start-of-content
https://github.com/
Sign in https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fmicrosoft%2FTypeScript%2Fpull%2F61359
GitHub CopilotWrite better code with AIhttps://github.com/features/copilot
GitHub Copilot appDirect agents from issue to mergehttps://github.com/features/ai/github-app
MCP RegistryNewIntegrate external toolshttps://github.com/mcp
ActionsAutomate any workflowhttps://github.com/features/actions
CodespacesInstant dev environmentshttps://github.com/features/codespaces
IssuesPlan and track workhttps://github.com/features/issues
Code ReviewManage code changeshttps://github.com/features/code-review
Code QualityEnforce quality at mergehttps://github.com/features/code-quality
GitHub Advanced SecurityFind and fix vulnerabilitieshttps://github.com/security/advanced-security
Code securitySecure your code as you buildhttps://github.com/security/advanced-security/code-security
Secret protectionStop leaks before they starthttps://github.com/security/advanced-security/secret-protection
Why GitHubhttps://github.com/why-github
Documentationhttps://docs.github.com
Bloghttps://github.blog
Changeloghttps://github.blog/changelog
Marketplacehttps://github.com/marketplace
View all featureshttps://github.com/features
Enterpriseshttps://github.com/enterprise
Small and medium teamshttps://github.com/team
Startupshttps://github.com/enterprise/startups
Nonprofitshttps://github.com/solutions/industry/nonprofits
App Modernizationhttps://github.com/solutions/use-case/app-modernization
DevSecOpshttps://github.com/solutions/use-case/devsecops
DevOpshttps://github.com/solutions/use-case/devops
CI/CDhttps://github.com/solutions/use-case/ci-cd
View all use caseshttps://github.com/solutions/use-case
Healthcarehttps://github.com/solutions/industry/healthcare
Financial serviceshttps://github.com/solutions/industry/financial-services
Manufacturinghttps://github.com/solutions/industry/manufacturing
Governmenthttps://github.com/solutions/industry/government
View all industrieshttps://github.com/solutions/industry
View all solutionshttps://github.com/solutions
AIhttps://github.com/resources/articles?topic=ai
Software Developmenthttps://github.com/resources/articles?topic=software-development
DevOpshttps://github.com/resources/articles?topic=devops
Securityhttps://github.com/resources/articles?topic=security
View all topicshttps://github.com/resources/articles
Customer storieshttps://github.com/customer-stories
Events & webinarshttps://github.com/resources/events
Ebooks & reportshttps://github.com/resources/whitepapers
Business insightshttps://github.com/solutions/executive-insights
GitHub Skillshttps://skills.github.com
Documentationhttps://docs.github.com
Customer supporthttps://support.github.com
Community forumhttps://github.com/orgs/community/discussions
Trust centerhttps://github.com/trust-center
Partnershttps://github.com/partners
View all resourceshttps://github.com/resources
GitHub SponsorsFund open source developershttps://github.com/open-source/sponsors
Security Labhttps://securitylab.github.com
Maintainer Communityhttps://maintainers.github.com
Acceleratorhttps://github.com/open-source/accelerator
GitHub Starshttps://stars.github.com
Archive Programhttps://archiveprogram.github.com
Topicshttps://github.com/topics
Trendinghttps://github.com/trending
Collectionshttps://github.com/collections
Enterprise platformAI-powered developer platformhttps://github.com/enterprise
GitHub Advanced SecurityEnterprise-grade security featureshttps://github.com/security/advanced-security
Copilot for BusinessEnterprise-grade AI featureshttps://github.com/features/copilot/copilot-business
Premium SupportEnterprise-grade 24/7 supporthttps://github.com/enterprise/premium-support
Pricinghttps://github.com/pricing
Search syntax tipshttps://docs.github.com/search-github/github-code-search/understanding-github-code-search-syntax
documentationhttps://docs.github.com/search-github/github-code-search/understanding-github-code-search-syntax
Sign in https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fmicrosoft%2FTypeScript%2Fpull%2F61359
Sign up https://github.com/signup?ref_cta=Sign+up&ref_loc=header+logged+out&ref_page=%2F%3Cuser-name%3E%2F%3Crepo-name%3E%2Fvoltron%2Fpull_requests_fragments%2Fpull_request_layout&source=header-repo&source_repo=microsoft%2FTypeScript
Reloadhttps://github.com/microsoft/TypeScript/pull/61359
Reloadhttps://github.com/microsoft/TypeScript/pull/61359
Reloadhttps://github.com/microsoft/TypeScript/pull/61359
Please reload this pagehttps://github.com/microsoft/TypeScript/pull/61359
microsoft https://github.com/microsoft
TypeScripthttps://github.com/microsoft/TypeScript
Notifications https://github.com/login?return_to=%2Fmicrosoft%2FTypeScript
Fork 13.6k https://github.com/login?return_to=%2Fmicrosoft%2FTypeScript
Star 110k https://github.com/login?return_to=%2Fmicrosoft%2FTypeScript
Code https://github.com/microsoft/TypeScript
Issues 5k+ https://github.com/microsoft/TypeScript/issues
Pull requests 30 https://github.com/microsoft/TypeScript/pulls
Actions https://github.com/microsoft/TypeScript/actions
Projects https://github.com/microsoft/TypeScript/projects
Models https://github.com/microsoft/TypeScript/models
Wiki https://github.com/microsoft/TypeScript/wiki
Security and quality 0 https://github.com/microsoft/TypeScript/security
Insights https://github.com/microsoft/TypeScript/pulse
Code https://github.com/microsoft/TypeScript
Issues https://github.com/microsoft/TypeScript/issues
Pull requests https://github.com/microsoft/TypeScript/pulls
Actions https://github.com/microsoft/TypeScript/actions
Projects https://github.com/microsoft/TypeScript/projects
Models https://github.com/microsoft/TypeScript/models
Wiki https://github.com/microsoft/TypeScript/wiki
Security and quality https://github.com/microsoft/TypeScript/security
Insights https://github.com/microsoft/TypeScript/pulse
gabrittohttps://github.com/gabritto
mainhttps://github.com/microsoft/TypeScript/tree/main
gabritto/fixedcondhttps://github.com/microsoft/TypeScript/tree/gabritto/fixedcond
Conversationhttps://github.com/microsoft/TypeScript/pull/61359
Commits12 (12)https://github.com/microsoft/TypeScript/pull/61359/commits
Checkshttps://github.com/microsoft/TypeScript/pull/61359/checks
Files changedhttps://github.com/microsoft/TypeScript/pull/61359/files
Bring back return type narrowing + fixeshttps://github.com/microsoft/TypeScript/pull/61359#top
gabrittohttps://github.com/gabritto
mainhttps://github.com/microsoft/TypeScript/tree/main
gabritto/fixedcondhttps://github.com/microsoft/TypeScript/tree/gabritto/fixedcond
https://github.com/gabritto
gabrittohttps://github.com/gabritto
Mar 5, 2025https://github.com/microsoft/TypeScript/pull/61359#issue-2898638441
#33014https://github.com/microsoft/TypeScript/issues/33014
#33912https://github.com/microsoft/TypeScript/issues/33912
#56941https://github.com/microsoft/TypeScript/pull/56941
https://gist.github.com/gabritto/b6ebd5f9fc2bb3cfc305027609e66bcahttps://gist.github.com/gabritto/b6ebd5f9fc2bb3cfc305027609e66bca
Please reload this pagehttps://github.com/microsoft/TypeScript/pull/61359
gabrittohttps://github.com/gabritto
March 5, 2025 10:59https://github.com/microsoft/TypeScript/pull/61359#commits-pushed-aa38e34
https://github.com/gabritto
Revert "Revert return type narrowing (https://github.com/microsoft/TypeScript/pull/61359/commits/aa38e34c18a5a1ed0b5a661abcac7ca3a5061314
#61136https://github.com/microsoft/TypeScript/pull/61136
)"https://github.com/microsoft/TypeScript/pull/61359/commits/aa38e34c18a5a1ed0b5a661abcac7ca3a5061314
aa38e34https://github.com/microsoft/TypeScript/pull/61359/commits/aa38e34c18a5a1ed0b5a661abcac7ca3a5061314
c3ae7c4https://github.com/microsoft/TypeScript/commit/c3ae7c418f6163cb7d051c7e153d77c4c4c73769
https://github.com/gabritto
add restriction on narrowable type constrainthttps://github.com/microsoft/TypeScript/pull/61359/commits/073d868abed1a1800e14bc0e7ebc42585ee94f76
073d868https://github.com/microsoft/TypeScript/pull/61359/commits/073d868abed1a1800e14bc0e7ebc42585ee94f76
https://github.com/gabritto
relax restriction on extends type of narrowable conditional typehttps://github.com/microsoft/TypeScript/pull/61359/commits/17ed356c580798f88470c359892f59747dba147f
17ed356https://github.com/microsoft/TypeScript/pull/61359/commits/17ed356c580798f88470c359892f59747dba147f
https://github.com/gabritto
WIP: detect embedded references to a narrowable type parameterhttps://github.com/microsoft/TypeScript/pull/61359/commits/fdb6beabee44085a9d61f1777d4eaf8917fb9c9a
fdb6beahttps://github.com/microsoft/TypeScript/pull/61359/commits/fdb6beabee44085a9d61f1777d4eaf8917fb9c9a
https://github.com/gabritto
Detect and construct narrowable references for embedded type parametershttps://github.com/microsoft/TypeScript/pull/61359/commits/18492922064d6115f891d1e13a61d24d3cdca9b8
1849292https://github.com/microsoft/TypeScript/pull/61359/commits/18492922064d6115f891d1e13a61d24d3cdca9b8
https://github.com/gabritto
validate optional param/propertyhttps://github.com/microsoft/TypeScript/pull/61359/commits/009d1524e18d691c8620be9529fa93a1fb967cbb
009d152https://github.com/microsoft/TypeScript/pull/61359/commits/009d1524e18d691c8620be9529fa93a1fb967cbb
https://github.com/gabritto
formathttps://github.com/microsoft/TypeScript/pull/61359/commits/5cb7e902bc1bfab7249a79da5d42f3b174778fe9
5cb7e90https://github.com/microsoft/TypeScript/pull/61359/commits/5cb7e902bc1bfab7249a79da5d42f3b174778fe9
https://github.com/gabritto
rework non-primitive restriction to be based on conditional type bran…https://github.com/microsoft/TypeScript/pull/61359/commits/3c5327e4796874c3e94a4701b0ec72352bc57771
3c5327ehttps://github.com/microsoft/TypeScript/pull/61359/commits/3c5327e4796874c3e94a4701b0ec72352bc57771
https://github.com/gabritto
update testshttps://github.com/microsoft/TypeScript/pull/61359/commits/7464af0f099eba2aaa6e3073e76f25874ad7b919
7464af0https://github.com/microsoft/TypeScript/pull/61359/commits/7464af0f099eba2aaa6e3073e76f25874ad7b919
https://github.com/gabritto
bring back conditional expression testhttps://github.com/microsoft/TypeScript/pull/61359/commits/c96e01e4fe582be7da354bf00752a08287fcedbc
c96e01ehttps://github.com/microsoft/TypeScript/pull/61359/commits/c96e01e4fe582be7da354bf00752a08287fcedbc
https://github.com/apps/github-project-automation
github-project-automationhttps://github.com/apps/github-project-automation
PR Backloghttps://github.com/orgs/microsoft/projects/1252
Mar 5, 2025https://github.com/microsoft/TypeScript/pull/61359#event-16607319302
https://github.com/apps/github-project-automation
github-project-automationhttps://github.com/apps/github-project-automation
PR Backloghttps://github.com/orgs/microsoft/projects/1252
Mar 5, 2025https://github.com/microsoft/TypeScript/pull/61359#event-16607319518
https://github.com/typescript-bot
typescript-bothttps://github.com/typescript-bot
gabrittohttps://github.com/gabritto
Mar 5, 2025https://github.com/microsoft/TypeScript/pull/61359#event-16607319639
https://github.com/typescript-bot
typescript-bothttps://github.com/typescript-bot
Author: Team https://github.com/microsoft/TypeScript/issues?q=state%3Aopen%20label%3A%22Author%3A%20Team%22
For Uncommitted Bug https://github.com/microsoft/TypeScript/issues?q=state%3Aopen%20label%3A%22For%20Uncommitted%20Bug%22
Mar 5, 2025https://github.com/microsoft/TypeScript/pull/61359#event-16607319857
https://github.com/gabritto
gabrittohttps://github.com/gabritto
DanielRosenwasserhttps://github.com/DanielRosenwasser
andrewbranchhttps://github.com/andrewbranch
sandersnhttps://github.com/sandersn
weswighamhttps://github.com/weswigham
March 5, 2025 22:07https://github.com/microsoft/TypeScript/pull/61359#event-16607348377
https://github.com/controversial
controversialhttps://github.com/controversial
Mar 6, 2025 https://github.com/microsoft/TypeScript/pull/61359#ref-pullrequest-2882914604
feat: implement typed Input/Output interface for resolvers react-hook-form/resolvers#753 https://github.com/react-hook-form/resolvers/pull/753
Allow extends type to be supertype of constraint types when narrowing conditional return type #61117 https://github.com/microsoft/TypeScript/pull/61117
Fix detection of single usage of type parameter for return type narrowing #61115 https://github.com/microsoft/TypeScript/pull/61115
https://github.com/gabritto
gabrittohttps://github.com/gabritto
Mar 20, 2025https://github.com/microsoft/TypeScript/pull/61359#issuecomment-2741317470
@typescript-bothttps://github.com/typescript-bot
Please reload this pagehttps://github.com/microsoft/TypeScript/pull/61359
https://github.com/typescript-bot
typescript-bothttps://github.com/typescript-bot
Mar 20, 2025https://github.com/microsoft/TypeScript/pull/61359#issuecomment-2741317634
Please reload this pagehttps://github.com/microsoft/TypeScript/pull/61359
✅ Startedhttps://typescript.visualstudio.com/cf7ac146-d525-443c-b23c-0d58337efebc/_build/results?buildId=164947
✅ Resultshttps://github.com/microsoft/TypeScript/pull/61359#issuecomment-2741326673
Please reload this pagehttps://github.com/microsoft/TypeScript/pull/61359
https://github.com/gabritto
gabrittohttps://github.com/gabritto
Mar 20, 2025https://github.com/microsoft/TypeScript/pull/61359#issuecomment-2741317645
@typescript-bothttps://github.com/typescript-bot
Please reload this pagehttps://github.com/microsoft/TypeScript/pull/61359
https://github.com/typescript-bot
typescript-bothttps://github.com/typescript-bot
Mar 20, 2025https://github.com/microsoft/TypeScript/pull/61359#issuecomment-2741317865
Please reload this pagehttps://github.com/microsoft/TypeScript/pull/61359
✅ Startedhttps://typescript.visualstudio.com/cf7ac146-d525-443c-b23c-0d58337efebc/_build/results?buildId=164949
✅ Resultshttps://github.com/microsoft/TypeScript/pull/61359#issuecomment-2741533534
✅ Startedhttps://typescript.visualstudio.com/cf7ac146-d525-443c-b23c-0d58337efebc/_build/results?buildId=164950
✅ Resultshttps://github.com/microsoft/TypeScript/pull/61359#issuecomment-2741385122
✅ Startedhttps://typescript.visualstudio.com/cf7ac146-d525-443c-b23c-0d58337efebc/_build/results?buildId=164948
✅ Resultshttps://github.com/microsoft/TypeScript/pull/61359#issuecomment-2741374052
✅ Startedhttps://typescript.visualstudio.com/cf7ac146-d525-443c-b23c-0d58337efebc/_build/results?buildId=164951
👀 Resultshttps://github.com/microsoft/TypeScript/pull/61359#issuecomment-2741426104
Please reload this pagehttps://github.com/microsoft/TypeScript/pull/61359
https://github.com/typescript-bot
typescript-bothttps://github.com/typescript-bot
Mar 20, 2025https://github.com/microsoft/TypeScript/pull/61359#issuecomment-2741326673
Please reload this pagehttps://github.com/microsoft/TypeScript/pull/61359
@gabrittohttps://github.com/gabritto
an installable tgzhttps://typescript.visualstudio.com/cf7ac146-d525-443c-b23c-0d58337efebc/_apis/build/builds/164947/artifacts?artifactName=tgz&fileId=D8EFF21205462B38E502A6643448F71CEACCECECE108A3D1D461EC8F7E9FF1E702&fileName=/typescript-5.9.0-insiders.20250320.tgz
for this buildhttps://www.typescriptlang.org/play?ts=5.9.0-pr-61359-4
npmhttps://www.npmjs.com/package/@typescript-deploys/pr-build/v/5.9.0-pr-61359-4
Please reload this pagehttps://github.com/microsoft/TypeScript/pull/61359
https://github.com/typescript-bot
typescript-bothttps://github.com/typescript-bot
Mar 20, 2025https://github.com/microsoft/TypeScript/pull/61359#issuecomment-2741374052
@gabrittohttps://github.com/gabritto
You can check the log herehttps://typescript.visualstudio.com/TypeScript/_build/index?buildId=164948&_a=summary
Please reload this pagehttps://github.com/microsoft/TypeScript/pull/61359
https://github.com/typescript-bot
typescript-bothttps://github.com/typescript-bot
Mar 20, 2025https://github.com/microsoft/TypeScript/pull/61359#issuecomment-2741385122
@gabrittohttps://github.com/gabritto
Please reload this pagehttps://github.com/microsoft/TypeScript/pull/61359
https://github.com/typescript-bot
typescript-bothttps://github.com/typescript-bot
Mar 20, 2025https://github.com/microsoft/TypeScript/pull/61359#issuecomment-2741426104
@gabrittohttps://github.com/gabritto
Download Benchmarkshttps://typescript.visualstudio.com/TypeScript/_build/results?buildId=164951&view=artifacts
Please reload this pagehttps://github.com/microsoft/TypeScript/pull/61359
https://github.com/typescript-bot
typescript-bothttps://github.com/typescript-bot
Mar 20, 2025https://github.com/microsoft/TypeScript/pull/61359#issuecomment-2741533534
@gabrittohttps://github.com/gabritto
Please reload this pagehttps://github.com/microsoft/TypeScript/pull/61359
https://github.com/gabritto
gabrittohttps://github.com/gabritto
Mar 21, 2025https://github.com/microsoft/TypeScript/pull/61359#issuecomment-2744050812
@typescript-bothttps://github.com/typescript-bot
Please reload this pagehttps://github.com/microsoft/TypeScript/pull/61359
https://github.com/typescript-bot
typescript-bothttps://github.com/typescript-bot
Mar 21, 2025https://github.com/microsoft/TypeScript/pull/61359#issuecomment-2744050963
Please reload this pagehttps://github.com/microsoft/TypeScript/pull/61359
✅ Startedhttps://typescript.visualstudio.com/cf7ac146-d525-443c-b23c-0d58337efebc/_build/results?buildId=164952
👀 Resultshttps://github.com/microsoft/TypeScript/pull/61359#issuecomment-2744155411
Please reload this pagehttps://github.com/microsoft/TypeScript/pull/61359
https://github.com/typescript-bot
typescript-bothttps://github.com/typescript-bot
Mar 21, 2025https://github.com/microsoft/TypeScript/pull/61359#issuecomment-2744155411
@gabrittohttps://github.com/gabritto
Download Benchmarkshttps://typescript.visualstudio.com/TypeScript/_build/results?buildId=164952&view=artifacts
Please reload this pagehttps://github.com/microsoft/TypeScript/pull/61359
https://github.com/gabritto
Also support classes. TODO: support parameter propertieshttps://github.com/microsoft/TypeScript/pull/61359/commits/c872eb853c6a895a3be257f22f75a00b0a13ee34
c872eb8https://github.com/microsoft/TypeScript/pull/61359/commits/c872eb853c6a895a3be257f22f75a00b0a13ee34
https://github.com/gabritto
gabrittohttps://github.com/gabritto
Mar 21, 2025https://github.com/microsoft/TypeScript/pull/61359#issuecomment-2744327730
Please reload this pagehttps://github.com/microsoft/TypeScript/pull/61359
https://github.com/gabritto
fix baselineshttps://github.com/microsoft/TypeScript/pull/61359/commits/2084fa0a24c68ca14b009661eb2c3b9b2e606f40
2084fa0https://github.com/microsoft/TypeScript/pull/61359/commits/2084fa0a24c68ca14b009661eb2c3b9b2e606f40
https://github.com/controversial
controversialhttps://github.com/controversial
May 5, 2025 https://github.com/microsoft/TypeScript/pull/61359#ref-issue-3036969266
TypeScript 5.9 Iteration Plan #61648 https://github.com/microsoft/TypeScript/issues/61648
https://github.com/lgenzelis
lgenzelishttps://github.com/lgenzelis
Aug 26, 2025https://github.com/microsoft/TypeScript/pull/61359#issuecomment-3226083554
Please reload this pagehttps://github.com/microsoft/TypeScript/pull/61359
https://github.com/controversial
controversialhttps://github.com/controversial
Aug 27, 2025https://github.com/microsoft/TypeScript/pull/61359#issuecomment-3226568573
#61648 (comment)https://github.com/microsoft/TypeScript/issues/61648#issuecomment-2849614732
Please reload this pagehttps://github.com/microsoft/TypeScript/pull/61359
https://github.com/gabritto
gabrittohttps://github.com/gabritto
Dec 8, 2025https://github.com/microsoft/TypeScript/pull/61359#event-21434104998
https://github.com/apps/github-project-automation
github-project-automationhttps://github.com/apps/github-project-automation
PR Backloghttps://github.com/orgs/microsoft/projects/1252
Dec 8, 2025https://github.com/microsoft/TypeScript/pull/61359#event-21434105844
https://github.com/controversial
controversialhttps://github.com/controversial
Dec 8, 2025https://github.com/microsoft/TypeScript/pull/61359#issuecomment-3628656968
Please reload this pagehttps://github.com/microsoft/TypeScript/pull/61359
@gabrittohttps://github.com/gabritto
Please reload this pagehttps://github.com/microsoft/TypeScript/pull/61359
https://github.com/microsoft
microsofthttps://github.com/microsoft
Jun 8, 2026https://github.com/microsoft/TypeScript/pull/61359#event-26454204589
https://github.co/hiddenchars
https://github.com/microsoft/TypeScript/pull/{{ revealButtonHref }}
Sign up for freehttps://github.com/join?source=comment-repo
Sign inhttps://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fmicrosoft%2FTypeScript%2Fpull%2F61359
https://github.com/sandersn
sandersn https://github.com/sandersn
https://github.com/DanielRosenwasser
DanielRosenwasser https://github.com/DanielRosenwasser
https://github.com/weswigham
weswigham https://github.com/weswigham
https://github.com/andrewbranch
andrewbranch https://github.com/andrewbranch
https://github.com/gabritto
gabritto https://github.com/gabritto
Author: Team https://github.com/microsoft/TypeScript/issues?q=state%3Aopen%20label%3A%22Author%3A%20Team%22
For Uncommitted Bug https://github.com/microsoft/TypeScript/issues?q=state%3Aopen%20label%3A%22For%20Uncommitted%20Bug%22
PR Backlog https://github.com/orgs/microsoft/projects/1252
Relate control flow to conditional types in return types https://github.com/microsoft/TypeScript/issues/33912
Suggestion for Dependent-Type-Like Functions: Conservative Narrowing of Generic Indexed Access Result Type https://github.com/microsoft/TypeScript/issues/33014
Please reload this pagehttps://github.com/microsoft/TypeScript/pull/61359
https://github.com/gabritto
https://github.com/typescript-bot
https://github.com/lgenzelis
https://github.com/controversial
https://github.com
Termshttps://docs.github.com/site-policy/github-terms/github-terms-of-service
Privacyhttps://docs.github.com/site-policy/privacy-policies/github-privacy-statement
Securityhttps://github.com/security
Statushttps://www.githubstatus.com/
Communityhttps://github.community/
Docshttps://docs.github.com/
Contacthttps://support.github.com?tags=dotcom-footer

Viewport: width=device-width

URLs of crawlers that visited me.