This commit updates the docs examples to Angular v12.1.3. In addition to
updating the dependencies versions, it also updates the projects'
structure and configs to more closely match what a new v12 CLI app would
look like. See, also, the [diff][1] between a basic v11.2.11 CLI app and
a v12.1.3 one.
[1]: https://github.com/cexbrayat/angular-cli-diff/compare/11.2.11..12.1.3
PR Close#42949
The `NO_ERRORS_SCHEMA` schema can be used to ignore errors related to unknown elements or properties, but since it suppresses these errors it may also hide real problems in a template. This commit updates the `NO_ERRORS_SCHEMA` docs to mention that.
Closes#39454.
PR Close#42327
remove `async` and `await` from `BannerComponent` test because the
component uses an inline template and styles
create doc region in `banner-external.component.spec.ts` demonstrating
test setup that may fail due to a missing call to `.compileComponents()`
for a component with an external template and stylesheet
PR Close#42336
remove `@Input()` decorator from `hero` property because the component
is designed to get the hero via a service, not an input binding.
add `HTMLElement` type to `HeroDetailComponent` unit test
PR Close#42349
https://developer.mozilla.org/en-US/docs/Web/CSS/font-family
"You should always include at least one generic family name in a font-family list,
since there's no guarantee that any given font is available. This lets the browser
select an acceptable fallback font when necessary."
PR Close#40254
Angular has stopped to support browser that requires these CSS properties.
All supported browsers support standard box-sizing CSS property
PR Close#40039
Because PhantomJS has been deprecated since March 2018, and `newEvent`
is very confusing for newcomers that read the testing documentation,
we remove it entirely, and instead assume most, if not all, newcomers
will run tests in Chrome as it is the default.
Fixes#23370
PR Close#37251