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

..

testing

build: update API goldens to reflect new tool (#42688)

2021-06-30 11:43:48 -07:00

core.md

fix(core): allow proper type inference when ngFor is used with a trackBy function (#42692)

2021-07-13 14:08:05 -07:00

global_utils.md

build: update API goldens to reflect new tool (#42688)

2021-06-30 11:43:48 -07:00