8000 "in" keyword inside NgIf throws error · Issue #49612 · angular/angular · GitHub
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"in" keyword inside NgIf throws error #49612

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zetti-caletti opened this issue Mar 28, 2023 · 2 comments
Closed

"in" keyword inside NgIf throws error #49612

zetti-caletti opened this issue Mar 28, 2023 · 2 comments
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area: compiler Issues related to `ngc`, Angular's template compiler area: core Issues related to the framework runtime core: binding & interpolation Issue related to property/attribute binding or text interpolation
Milestone
needsTriage

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@zetti-caletti
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Which @angular/* package(s) are the source of the bug?

common

Is this a regression?

Yes

Description

When using 'foo' in bla it throws an error "Can't bind to 'ngIfIn' since it isn't a known property of 'div'"

Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/angular-ft5mwg?file=src%2Fmain.ts

Please provide the exception or error you saw

Can't bind to 'ngIfIn' since it isn't a known property of 'div'

Please provide the environment you discovered this bug in (run ng version)

Angular CLI: 15.2.4
Node: 16.13.0
Package Manager: npm 8.7.0
OS: linux x64

Angular: 
... 

Package                      Version
------------------------------------------------------
@angular-devkit/architect    0.1502.4 (cli-only)
@angular-devkit/core         15.2.4 (cli-only)
@angular-devkit/schematics   15.2.4 (cli-only)
@schematics/angular          15.2.4 (cli-only)

Anything else?

No response
@pkozlowski-opensource pkozlowski-opensource added area: core Issues related to the framework runtime core: binding & interpolation Issue related to property/attribute binding or text interpolation labels Mar 28, 2023
@ngbot ngbot bot modified the milestone: needsTriage Mar 28, 2023
@pkozlowski-opensource pkozlowski-opensource added the area: compiler Issues related to `ngc`, Angular's template compiler label Mar 28, 2023
@JoostK
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JoostK commented Apr 5, 2023

This happens because the in keyword is not supported in Angular's expression syntax. This has been reported in #38560 and is now being tracked in #43485.

@JoostK JoostK closed this as not planned Won't fix, can't repro, duplicate, stale Apr 5, 2023
@JeanMeche JeanMeche mentioned this issue Apr 6, 2023
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JeanMeche added a commit to JeanMeche/angular that referenced this issue Apr 6, 2023
@JeanMeche
fix(compiler): Support in operator in *ngIf expressions
99840d0 
This commit add the support of the `in` operator to the Expression Parser.

Fixes angular#49612
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area: compiler Issues related to `ngc`, Angular's template compiler area: core Issues related to the framework runtime core: binding & interpolation Issue related to property/attribute binding or text interpolation
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fix(compiler): Support in operator in *ngIf expressions JeanMeche/angular
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@JoostK @pkozlowski-opensource @zetti-caletti
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