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URL: http://github.com/angular/angular/issues/68509

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[Signal Forms] required validator function treats false as not present · Issue #68509 · angular/angular · GitHub
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[Signal Forms] required validator function treats false as not present #68509

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[Signal Forms] required validator function treats false as not present#68509
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area: formsgemini-triagedLabel noting that an issue has been triaged by gemini
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@dr-schopalopp

Description

@dr-schopalopp
dr-schopalopp
opened on May 1, 2026

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

forms

Is this a regression?

No

Description

When I use the required validator function on a boolean field, I get a validation error when the field value is false.

I think false is a valid value for a boolean field so this should be fixed.

It's not a regression - was there from the beginning (commit) and refactored into an isEmpty util function later (commit)

The reactive forms Validators.required uses an isEmptyInputValue util function, which does a better job IMO

Cheers!

Please provide a link to a minimal reproduction of the bug

No response

Please provide the exception or error you saw

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

Angular CLI       : 21.2.8
Angular           : 21.2.10
Node.js           : 24.15.0
Package Manager   : npm 11.12.1
Operating System  : linux x64

┌───────────────────────────────────┬───────────────────┬───────────────────┐
│ Package                           │ Installed Version │ Requested Version │
├───────────────────────────────────┼───────────────────┼───────────────────┤
│ @angular/animations               │ 21.2.10           │ ^21.2.10          │
│ @angular/build                    │ 21.2.8            │ ^21.2.8           │
│ @angular/cdk                      │ 21.2.8            │ ^21.2.8           │
│ @angular/cli                      │ 21.2.8            │ ^21.2.8           │
│ @angular/common                   │ 21.2.10           │ ^21.2.10          │
│ @angular/compiler                 │ 21.2.10           │ ^21.2.10          │
│ @angular/compiler-cli             │ 21.2.10           │ ^21.2.10          │
│ @angular/core                     │ 21.2.10           │ ^21.2.10          │
│ @angular/forms                    │ 21.2.10           │ ^21.2.10          │
│ @angular/material                 │ 21.2.8            │ ^21.2.8           │
│ @angular/platform-browser         │ 21.2.10           │ ^21.2.10          │
│ @angular/platform-browser-dynamic │ 21.2.10           │ ^21.2.10          │
│ @angular/router                   │ 21.2.10           │ ^21.2.10          │
│ rxjs                              │ 7.8.2             │ ~7.8.0            │
│ typescript                        │ 5.9.3             │ ~5.9.3            │
└───────────────────────────────────┴───────────────────┴───────────────────┘

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