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chore: add angular 21 documentation #6326

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18 changes: 18 additions & 0 deletions docs/app/component-testing/angular/examples.mdx
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Expand Up @@ -157,6 +157,24 @@ it('clicking + fires a change event with the incremented value', () => {
})
```

### Working with Legacy @Input() Decorators

With the release of Angular 18, [signals](https://angular.dev/guide/signals) became the preferred way to handle data binding.
However, legacy components that use `@Input()` and `@Output()` decorators are still supported.

Interacting with legacy `@Input()` decorators is a bit different than working with signals.
In order to update the `@Input()` value, you need to use the `componentRef.setInput` method so Angular change detection runs properly.
Otherwise, you may see errors.

```ts
cy.mount(StepperComponent, { componentProperties: { count: 100 } }).then(({ fixture }) => {
return cy.contains('span', '100').wrap(fixture)
}).then((fixture) => {
fixture.componentRef.setInput('count', 110)
return cy.contains('span', '110')
})
```

### Using createOutputSpy()

To make spying on event emitters easier, there is a utility function called
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2 changes: 1 addition & 1 deletion docs/app/component-testing/angular/overview.mdx
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Expand Up @@ -20,7 +20,7 @@ sidebar_label: Overview

## Framework Support

Cypress Component Testing supports Angular `^18.0.0`, `^19.0.0`, and `^20.0.0`.
Cypress Component Testing supports Angular `^18.0.0`, `^19.0.0`, `^20.0.0`, and `^21.0.0`.

:::info

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2 changes: 1 addition & 1 deletion docs/app/component-testing/get-started.mdx
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Expand Up @@ -47,7 +47,7 @@ following development servers and frameworks:
| [Next.js 14-16](/app/component-testing/react/overview#Nextjs) | React 18-19 | Webpack 5 |
| [Vue with Vite](/app/component-testing/vue/overview#Vue-with-Vite) | Vue 3 | Vite 5-7 |
| [Vue with Webpack](/app/component-testing/vue/overview#Vue-with-Webpack) | Vue 3 | Webpack 5 |
| [Angular](/app/component-testing/angular/overview#Framework-Configuration) | Angular 18-20 | Webpack 5 |
| [Angular](/app/component-testing/angular/overview#Framework-Configuration) | Angular 18-21 | Webpack 5 |
| [Svelte with Vite](/app/component-testing/svelte/overview#Svelte-with-Vite) <Badge type="info">Alpha</Badge> | Svelte 5 | Vite 5-7 |
| [Svelte with Webpack](/app/component-testing/svelte/overview#Svelte-with-Webpack) <Badge type="info">Alpha</Badge> | Svelte 5 | Webpack 5 |

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