angular/packages/core
JoostK 51156f3f07 fix(core): allow proper type inference when ngFor is used with a trackBy function (#42692)
In #41995 the type of `TrackByFunction` was changed such that the
declaration of a `trackBy` function did not cause the item type to be
widened to the `trackBy`'s item type, which may be a supertype of the
iterated type. This has introduced situations where the template type
checker is now reporting errors for cases where a `trackBy` function is
no longer assignable to `TrackByFunction`.

This commit fixes the error by also including the item type `T` in
addition to the constrained type parameter `U`, allowing TypeScript to
infer an appropriate `T`.

Fixes #42609

PR Close #42692
2021-07-13 14:08:05 -07:00
..
global build: update license headers to reference Google LLC (#37205) 2020-05-26 14:26:58 -04:00
schematics refactor: add override keyword to members implementing abstract declarations (#42512) 2021-07-12 13:11:17 -07:00
src fix(core): allow proper type inference when ngFor is used with a trackBy function (#42692) 2021-07-13 14:08:05 -07:00
test refactor: add override keyword to members implementing abstract declarations (#42512) 2021-07-12 13:11:17 -07:00
testing refactor: add override keyword to members implementing abstract declarations (#42512) 2021-07-12 13:11:17 -07:00
BUILD.bazel build: update API goldens to reflect new tool (#42688) 2021-06-30 11:43:48 -07:00
index.ts build: update license headers to reference Google LLC (#37205) 2020-05-26 14:26:58 -04:00
package.json feat(core): support TypeScript 4.3 (#42022) 2021-06-04 11:17:09 -07:00
PACKAGE.md docs: add package doc files (#26047) 2018-10-05 15:42:14 -07:00
public_api.ts build: update license headers to reference Google LLC (#37205) 2020-05-26 14:26:58 -04:00