Previously, the template type-checker would always construct a generic
template context type with correct bounds, even when strictTemplates was
disabled. This meant that type-checking of expressions involving that type
was stricter than View Engine.
This commit introduces a 'strictContextGenerics' flag which behaves
similarly to other 'strictTemplates' flags, and switches the inference of
generic type parameters on the component context based on the value of this
flag.
PR Close#34649
The StackBlitz API (which we use to generate StackBlitz projects on the
fly, when a user clicks on a live example link in the docs) allows
specifying the file to open in the editor by passing a query param. If
no file is specified, StackBlitz opens a default one. In the past, it
used to be `main.ts` and nowadays it seems to be `app.component.ts`.
StackBlitz builder, the tool that we use to generate the StackBlitz
projects, allows specifying the primary file by setting the `file`
property in the corresponding `stackblitz.json`.
Previously, if the `file` property was not set, StackBlitz builder would
not specify a file, thus falling back on StackBlitz's default behavior.
This was not great, because the default behavior may change unexpectedly
is the future to something that is less useful for our users.
This commit change StackBlitz builder to always specify a primary file.
If no file is specified in `stackblitz.json`, the builder will look
for the first file that exists in the example from a list of predefined
files.
Partially addresses #22357.
PR Close#34553
First we used a messages array to display messages toh-4 but it dsplayed only one message added additional messages on click of a hero
Fixes#28739
PR Close#34496
Previously, the examples in the `comparing-observables` guide were hard-coded.
This made it impossible to test them and verify they are correct.
This commit fixes this by converting them into a proper mini-app. In a
subsequent commit, tests will be added to verify that the source code
works as expected (and guard against regressions).
Fixes#31024
PR Close#34327
Previously, the examples in the `cli-builder` guide were hard-coded.
This made it impossible to test them and verify they are correct.
This commit fixes this by converting them into a proper mini-app. In a
subsequent commit, tests will be added to verify that the source code
works as expected (and guard against regressions).
Fixes#34314
PR Close#34362
earlier in the docs it was told that adding typescript's type checking make json response typed so changed docs to say that it adds all typescipt capabilities during compile time
Fixes#34746
PR Close#34845
With TS 3.7, these examples were running into the error below (e.g. on https://circleci.com/gh/angular/angular/574906#tests/containers/0):
```
============== AIO example output for: /home/circleci/ng/aio/content/examples/observables/
running: yarn tsc --project ./
$ /home/circleci/ng/aio/content/examples/observables/node_modules/.bin/tsc --project ./
../../../tools/examples/shared/node_modules/protractor/built/index.d.ts(5,10): error TS2440: Import declaration conflicts with local declaration of 'PluginConfig'.
../../../tools/examples/shared/node_modules/protractor/built/index.d.ts(5,24): error TS2440: Import declaration conflicts with local declaration of 'ProtractorPlugin'.
error Command failed with exit code 2.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
completed: yarn tsc --project ./
```
This happened because of https://github.com/angular/protractor/issues/5348.
It's unclear why this typings problem does not affect `ng e2e` runs, and only affects `tsc` runs.
For now it seems sensible to alter the tests to compile only the app and not the e2e, since the intent of 2cc954d5a5 was never to verify the correctness of the e2e in the first place.
We still need a release of protractor that supports TS 3.7 though, but at least it doesn't seem to block our update proper.
PR Close#33717
There was some confusion about how the service will be injected in the sentence with the `new` keyword. This PR should hopefully clear the confusion.
Fixes#34612
PR Close#34638
Previously, some of the examples in the `lazy-loading-ngmodules` guide
were hard-coded.
This commit ensures all examples in the guide are extracted from
docregions in the corresponding example project.
PR Close#34599
The main change here was to remove the updating instructions for
version 9 and instead point to update.angular.io. This ensures
we only have one "source of truth" for update instructions.
This commit also includes updates to error message text to
keep them up-to-date with live error messages (and thus keep
them searchable).
PR Close#34498
Previously, it was required that both `fullTemplateTypeCheck` and
`strictTemplates` had to be enabled for strict mode to be enabled. This
is strange, as `strictTemplates` implies `fullTemplateTypeCheck`. This
commit makes setting the `fullTemplateTypeCheck` flag optional so that
strict mode can be enabled by just setting `strictTemplates`.
PR Close#34195
in the getting started page (first tutorial) file products.ts which was not shown and was only present in the StackBlitz examples. So added a refrence that it is present in the example and also added a note that examples may carry filenames not present please look at StackBliz examples for details
Fixes#34291
PR Close#34301
The headers of two of the code-snippets in the [Input section](https://angular.io/start#input)
of the "Getting Started" guide incorrectly referenced an non-existent
file path (`src/app/product-list/product-alerts.component.ts`).
This commit fixes the headers to show the correct file path
(`src/app/product-alerts/product-alerts.component.ts`).
Fixes#34320
PR Close#34321
On events page the header was not able to take full width when body exceeds viewport width of the screen So made the below body go overflow-x auto and resources page was taking 80% of the width which is okay on desktop but on mobile it should take 100% width put a media quer for it.
Fixes#34163
PR Close#34188
The missing-injectable migration has been updated to handle a breaking change that is
unrelated to missing ´@Injectable` decorators. Though, the breaking change will be handled
as part of this migration since we did not want to create another migration (with all the boilerplate etc.)
The guide has been already updated to reflect the new pattern the migration handles, but we
should also rename the title of the guide to something that also mentions the other pattern.
Not renaming the guide URL since it is referenced in past releases and it's safer to keep the old
URL. The important thing is to change the actual rendered title.
PR Close#34125
Previously, some RxJS-related examples (which are not proper Angular apps) were not
tested on CI as part of the `example-e2e` npm script. This meant that the examples
could get out-of-date or contain compile errors without as noticing.
This commit ensures that the `example-e2e` script picks up these examples and checks
that they compile successfully.
Partly addresses #28017.
PR Close#34063
Since we created the migration guide for the `missing-injectable` schematic, the schematic
changed in various ways. e.g. the migration no longer migrates classes passed to `useExisting`
Additionally the migration has been expanded to handle another Ivy breaking change where
providers like `{provide: X}` will be intepreted as `{provide: X, useClass: X}`. This pattern should
be documented in the migration guide.
PR Close#33960
These apis have been deprecated in v8, so they should stick around till v10,
but since they are defunct we are removing them early so that they don't take up payload size.
PR Close#33949
link to the correct section of the HttpClientGuide:
if someone searches for CSRF (and not XSRF), she will not find the right section in the HttpClient guide
added CSRF as name of XSRF attack:
in order to make it easier to find the XSRF protection, I've added a reference to the other name "CSRF". The security guide has the same reference to XSRF/CSRF.
When I searched for this feature, I had quite some problems to find it because of this missing reference
PR Close#32933
Previously, the generated StackBlitz examples as well as the
corresponding downloadable zips for the `http` guide examples were not
correct and thus trying to run the app and/or tests would fail.
This commit fixes the examples:
- Replace `TestBed.inject()` (which was [introduced in v9][1]) with
`TestBed.get()` (which is available in v8 used in the examples).
(NOTE: The examples will soon be updated to v9 (as part of
[FW-1609][2] and switched back to `TestBed.inject()` then.)
- Include `src/app/heroes/hero.ts` in the zip, because it is referenced
by some of the other files and the compilation fails without it.
- Ensure `src/main-specs.ts` is not included in the zip that does not
include the tests. Including the file broke the app, because there is
logic in our zip-builder that renamed `main-*.ts` files to `main.ts`
and thus `main-specs.ts` ended up overwriting the actual `main.ts`.
[1]: https://next.angular.io/guide/deprecations#angularcoretesting
[2]: https://angular-team.atlassian.net/browse/FW-1609Fixes#33874Fixes#33945
PR Close#33941
By adding the `bash` language to the code snippet it will no
longer be auto-linked, which was causing a false positive link
to be rendered.
Fixes#33859
PR Close#33877
Reference #33259
Removes figures elements as AIO is not typically using captions or image groups where figures would be necessary or appropriate
PR Close#33748
This commit removes one of the expected Ivy changes because we have
decided to change the behavior to be more backwards-compatible.
It also adds a bug fix that is technically breaking to the list of
expected changes.
PR Close#33675
Often the types of an `@Input`'s field don't fully reflect the types of
assignable values. This can happen when an input has a getter/setter pair
where the getter always returns a narrow type, and the setter coerces a
wider value down to the narrow type.
For example, you could imagine an input of the form:
```typescript
@Input() get value(): string {
return this._value;
}
set value(v: {toString(): string}) {
this._value = v.toString();
}
```
Here, the getter always returns a `string`, but the setter accepts any value
that can be `toString()`'d, and coerces it to a string.
Unfortunately TypeScript does not actually support this syntax, and so
Angular users are forced to type their setters as narrowly as the getters,
even though at runtime the coercion works just fine.
To support these kinds of patterns (e.g. as used by Material), this commit
adds a compiler feature called "input coercion". When a binding is made to
the 'value' input of a directive like MatInput, the compiler will look for a
static field with the name ngAcceptInputType_value. If such a field is found
the type-checking expression for the input will use the static field's type
instead of the type for the @Input field,allowing for the expression of a
type conversion between the binding expression and the value being written
to the input's field.
To solve the case above, for example, MatInput might write:
```typescript
class MatInput {
// rest of the directive...
static ngAcceptInputType_value: {toString(): string};
}
```
FW-1475 #resolve
PR Close#33243
PR#28396 originally addressed an update via issue #23983 to make images more visible with a white background (implementation of gray "lightbox").
This PR implements those styles defined in PR#28396.
PR Close#33259
Alex Rickabaugh
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