René's URL Explorer Experiment


Title: Be more lenient about iteration when `lib=es5` / `noLib` by jakebailey · Pull Request #63070 · microsoft/TypeScript · GitHub

Open Graph Title: Be more lenient about iteration when `lib=es5` / `noLib` by jakebailey · Pull Request #63070 · microsoft/TypeScript

X Title: Be more lenient about iteration when `lib=es5` / `noLib` by jakebailey · Pull Request #63070 · microsoft/TypeScript

Description: TypeScript is a superset of JavaScript that compiles to clean JavaScript output. - Be more lenient about iteration when `lib=es5` / `noLib` by jakebailey · Pull Request #63070 · microsoft/TypeScript

Open Graph Description: When lib=es5 or noLib, but the target is ES2015+, we issue errors on iterations complaining that [Symbol.iterator]() is missing. Which is impossible, because there's no lib. See these breaks: #...

X Description: When lib=es5 or noLib, but the target is ES2015+, we issue errors on iterations complaining that [Symbol.iterator]() is missing. Which is impossible, because there's no lib. See these break...

Opengraph URL: https://github.com/microsoft/TypeScript/pull/63070

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:fd3c0893-12ed-c125-fa14-47f7378630ac
current-catalog-service-hashae870bc5e265a340912cde392f23dad3671a0a881730ffdadd82f2f57d81641b
request-idCE34:2D1717:CB8DB:10F8BE:6A6289B6
html-safe-nonce65fe354bc278448f99faad26607b5a7006dba3d0b05b606b2974f35ec5cd0905
visitor-payloadeyJyZWZlcnJlciI6IiIsInJlcXVlc3RfaWQiOiJDRTM0OjJEMTcxNzpDQjhEQjoxMEY4QkU6NkE2Mjg5QjYiLCJ2aXNpdG9yX2lkIjoiNzY3ODczODk2MzkwMjkyNTIzOCIsInJlZ2lvbl9lZGdlIjoiaWFkIiwicmVnaW9uX3JlbmRlciI6ImlhZCJ9
visitor-hmac3d4a326236e9623a239f7f0f7a740cda921671216f84ddf0c554c497072ef4e8
hovercard-subject-tagpull_request:3229355199
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/63070/pull_request_layout
twitter:imagehttps://opengraph.githubassets.com/cd84c99ac73a14529f36729f0f13cc3432373ee5c3a7ee72b32b2e6bcde194a8/microsoft/TypeScript/pull/63070
twitter:cardsummary_large_image
og:imagehttps://opengraph.githubassets.com/cd84c99ac73a14529f36729f0f13cc3432373ee5c3a7ee72b32b2e6bcde194a8/microsoft/TypeScript/pull/63070
og:image:altWhen lib=es5 or noLib, but the target is ES2015+, we issue errors on iterations complaining that [Symbol.iterator]() is missing. Which is impossible, because there's no lib. See these breaks: #...
og:image:width1200
og:image:height600
og:site_nameGitHub
og:typeobject
og:author:usernamejakebailey
hostnamegithub.com
expected-hostnamegithub.com
None7a4ef49a11a2c05de16a801b29c54a151d2e3262d6fd17381ca13b5ae25dda8f
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
release97b18c8f1d2683a31995fd6e802daf9bf0d4d3f0
ui-targetfull
theme-color#1e2327
color-schemelight dark

Links:

Skip to contenthttps://github.com/microsoft/TypeScript/pull/63070#start-of-content
https://github.com/
Sign in https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fmicrosoft%2FTypeScript%2Fpull%2F63070
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%2F63070
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/63070
Reloadhttps://github.com/microsoft/TypeScript/pull/63070
Reloadhttps://github.com/microsoft/TypeScript/pull/63070
Please reload this pagehttps://github.com/microsoft/TypeScript/pull/63070
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 21 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
jakebaileyhttps://github.com/jakebailey
microsoft:mainhttps://github.com/microsoft/TypeScript/tree/main
jakebailey:iterable-thinghttps://github.com/jakebailey/TypeScript/tree/iterable-thing
Conversationhttps://github.com/microsoft/TypeScript/pull/63070
Commits3 (3)https://github.com/microsoft/TypeScript/pull/63070/commits
Checkshttps://github.com/microsoft/TypeScript/pull/63070/checks
Files changedhttps://github.com/microsoft/TypeScript/pull/63070/files
Be more lenient about iteration when lib=es5 / noLibhttps://github.com/microsoft/TypeScript/pull/63070#top
jakebaileyhttps://github.com/jakebailey
microsoft:mainhttps://github.com/microsoft/TypeScript/tree/main
jakebailey:iterable-thinghttps://github.com/jakebailey/TypeScript/tree/iterable-thing
https://github.com/jakebailey
jakebaileyhttps://github.com/jakebailey
Jan 30, 2026https://github.com/microsoft/TypeScript/pull/63070#issue-3877440227
Please reload this pagehttps://github.com/microsoft/TypeScript/pull/63070
#63067 (comment)https://github.com/microsoft/TypeScript/pull/63067#issuecomment-3821801870
Please reload this pagehttps://github.com/microsoft/TypeScript/pull/63070
https://github.com/jakebailey
Add testshttps://github.com/microsoft/TypeScript/pull/63070/commits/b1a582ce2a601eebd30ab5f0f5e03f5184d8f04f
b1a582chttps://github.com/microsoft/TypeScript/pull/63070/commits/b1a582ce2a601eebd30ab5f0f5e03f5184d8f04f
https://github.com/typescript-bot
typescript-bothttps://github.com/typescript-bot
jakebaileyhttps://github.com/jakebailey
Jan 30, 2026https://github.com/microsoft/TypeScript/pull/63070#event-22418035272
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
Jan 30, 2026https://github.com/microsoft/TypeScript/pull/63070#event-22418035458
https://github.com/jakebailey
jakebaileyhttps://github.com/jakebailey
Jan 30, 2026 https://github.com/microsoft/TypeScript/pull/63070#pullrequestreview-3730473629
View reviewed changes https://github.com/microsoft/TypeScript/pull/63070/files/b1a582ce2a601eebd30ab5f0f5e03f5184d8f04f
...s/reference/sourceMapValidationDestructuringForArrayBindingPattern(target=es2015).errors.txthttps://github.com/microsoft/TypeScript/pull/63070/files/b1a582ce2a601eebd30ab5f0f5e03f5184d8f04f#diff-e65807a2a30192373ce704846c485f1f54d4030403affecd8faace0b0237677b
Please reload this pagehttps://github.com/microsoft/TypeScript/pull/63070
https://github.com/jakebailey
jakebaileyhttps://github.com/jakebailey
Jan 30, 2026 https://github.com/microsoft/TypeScript/pull/63070#pullrequestreview-3730475855
View reviewed changes https://github.com/microsoft/TypeScript/pull/63070/files/b1a582ce2a601eebd30ab5f0f5e03f5184d8f04f
tests/baselines/reference/noCrashOnNoLib.errors.txthttps://github.com/microsoft/TypeScript/pull/63070/files/b1a582ce2a601eebd30ab5f0f5e03f5184d8f04f#diff-73bb4292354b19dab9ae8168cc1e6f70912258babdbcc66b7acf46a300596667
Please reload this pagehttps://github.com/microsoft/TypeScript/pull/63070
https://github.com/jakebailey
jakebaileyhttps://github.com/jakebailey
Jan 30, 2026 https://github.com/microsoft/TypeScript/pull/63070#pullrequestreview-3730478408
View reviewed changes https://github.com/microsoft/TypeScript/pull/63070/files/b1a582ce2a601eebd30ab5f0f5e03f5184d8f04f
src/compiler/checker.tshttps://github.com/microsoft/TypeScript/pull/63070/files/b1a582ce2a601eebd30ab5f0f5e03f5184d8f04f#diff-d9ab6589e714c71e657f601cf30ff51dfc607fc98419bf72e04f6b0fa92cc4b8
Please reload this pagehttps://github.com/microsoft/TypeScript/pull/63070
https://github.com/jakebailey
jakebaileyhttps://github.com/jakebailey
January 30, 2026 21:31https://github.com/microsoft/TypeScript/pull/63070#event-22418110621
https://github.com/apps/copilot-pull-request-reviewer
Copilothttps://github.com/apps/copilot-pull-request-reviewer
January 30, 2026 21:31https://github.com/microsoft/TypeScript/pull/63070#event-22418110847
started reviewinghttps://github.com/microsoft/TypeScript/sessions/c55ef705-e710-4aa9-846d-1210176c34c8
jakebaileyhttps://github.com/jakebailey
January 30, 2026 21:32https://github.com/microsoft/TypeScript/pull/63070#event-22418119890
View session https://github.com/microsoft/TypeScript/sessions/c55ef705-e710-4aa9-846d-1210176c34c8
https://github.com/apps/copilot-pull-request-reviewer
Copilothttps://github.com/apps/copilot-pull-request-reviewer
Jan 30, 2026 https://github.com/microsoft/TypeScript/pull/63070#pullrequestreview-3730491855
View reviewed changes https://github.com/microsoft/TypeScript/pull/63070/files/b1a582ce2a601eebd30ab5f0f5e03f5184d8f04f
Copilothttps://github.com/apps/copilot-pull-request-reviewer
https://github.com/microsoft/TypeScript/pull/63070#pullrequestreview-3730491855
Learn morehttps://docs.github.com/articles/managing-disruptive-comments/#hiding-a-comment
Please reload this pagehttps://github.com/microsoft/TypeScript/pull/63070
src/compiler/checker.tshttps://github.com/microsoft/TypeScript/pull/63070/files/b1a582ce2a601eebd30ab5f0f5e03f5184d8f04f#diff-d9ab6589e714c71e657f601cf30ff51dfc607fc98419bf72e04f6b0fa92cc4b8
Please reload this pagehttps://github.com/microsoft/TypeScript/pull/63070
https://github.com/RyanCavanaugh
RyanCavanaughhttps://github.com/RyanCavanaugh
Jan 30, 2026 https://github.com/microsoft/TypeScript/pull/63070#pullrequestreview-3730670567
View reviewed changes https://github.com/microsoft/TypeScript/pull/63070/files/b1a582ce2a601eebd30ab5f0f5e03f5184d8f04f
https://github.com/jakebailey
Revert isArrayLikeTypehttps://github.com/microsoft/TypeScript/pull/63070/commits/6c2c564554a9f521c55e2aad0f9624ad1db29b4d
6c2c564https://github.com/microsoft/TypeScript/pull/63070/commits/6c2c564554a9f521c55e2aad0f9624ad1db29b4d
https://github.com/jakebailey
jakebaileyhttps://github.com/jakebailey
RyanCavanaughhttps://github.com/RyanCavanaugh
January 30, 2026 22:27https://github.com/microsoft/TypeScript/pull/63070#event-22419155253
https://github.com/jakebailey
Go away, commenthttps://github.com/microsoft/TypeScript/pull/63070/commits/673c49644933b812bdfed8774eef18eb6e5e859b
673c496https://github.com/microsoft/TypeScript/pull/63070/commits/673c49644933b812bdfed8774eef18eb6e5e859b
https://github.com/RyanCavanaugh
RyanCavanaughhttps://github.com/RyanCavanaugh
Jan 30, 2026 https://github.com/microsoft/TypeScript/pull/63070#pullrequestreview-3730707802
View reviewed changes https://github.com/microsoft/TypeScript/pull/63070/files/b1a582ce2a601eebd30ab5f0f5e03f5184d8f04f
https://github.com/jakebailey
jakebaileyhttps://github.com/jakebailey
January 30, 2026 22:32https://github.com/microsoft/TypeScript/pull/63070#event-22419240722
https://github.com/RyanCavanaugh
RyanCavanaughhttps://github.com/RyanCavanaugh
Jan 30, 2026 https://github.com/microsoft/TypeScript/pull/63070#pullrequestreview-3730773743
View reviewed changes https://github.com/microsoft/TypeScript/pull/63070/files/673c49644933b812bdfed8774eef18eb6e5e859b
https://github.com/jakebailey
jakebaileyhttps://github.com/jakebailey
merge queuehttps://github.com/microsoft/TypeScript/queue/main
Jan 30, 2026https://github.com/microsoft/TypeScript/pull/63070#event-22419485159
db1fa5chttps://github.com/microsoft/TypeScript/commit/db1fa5c10c7404f490b4200ddfff3c6c96cc9274
Jan 30, 2026https://github.com/microsoft/TypeScript/pull/63070#event-22419663438
Please reload this pagehttps://github.com/microsoft/TypeScript/pull/63070
https://github.com/jakebailey
jakebaileyhttps://github.com/jakebailey
January 30, 2026 22:54https://github.com/microsoft/TypeScript/pull/63070#event-22419663685
https://github.com/apps/copilot-swe-agent
Copilothttps://github.com/apps/copilot-swe-agent
Feb 11, 2026 https://github.com/microsoft/TypeScript/pull/63070#ref-pullrequest-3924112801
Port TypeScript#63070: Be more lenient about iteration when lib=es5 / noLib microsoft/typescript-go#2753 https://github.com/microsoft/typescript-go/pull/2753
https://github.co/hiddenchars
https://github.com/microsoft/TypeScript/pull/{{ revealButtonHref }}
Sign up for freehttps://github.com/join?source=comment-repo
Sign in to commenthttps://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fmicrosoft%2FTypeScript%2Fpull%2F63070
Copilot code review https://github.com/apps/copilot-pull-request-reviewer
Copilot https://github.com/apps/copilot-pull-request-reviewer
https://github.com/microsoft/TypeScript/pull/63070/files/b1a582ce2a601eebd30ab5f0f5e03f5184d8f04f
https://github.com/RyanCavanaugh
RyanCavanaugh https://github.com/RyanCavanaugh
https://github.com/microsoft/TypeScript/pull/63070/files/673c49644933b812bdfed8774eef18eb6e5e859b
https://github.com/jakebailey
jakebailey https://github.com/jakebailey
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
Please reload this pagehttps://github.com/microsoft/TypeScript/pull/63070
https://github.com/jakebailey
https://github.com/RyanCavanaugh
https://github.com/apps/copilot-pull-request-reviewer
https://github.com/andrewbranch
https://github.com/typescript-bot
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.