Revert "feat(@schematics/angular): create new projects with rxjs 7" #21872
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This reverts commit 7bdcd7d. As of `rxjs` version 7 (up to and including the current 7.3.1), only the ES5 variant of `rxjs` can be imported/required when bundling. ES2015 files are available but currently not resolvable via the `exports` field defined within the package. While the ES5 variant is functional, it can lead to larger application sizes due to the extra code from the ES5 down-leveling process. This unfortunately can also lead to performance regressions with newly created applications (or applications that transition to v7) both by being larger and needing to execute more (down-leveled) code at application runtime. As a result, Angular’s current recommendation is to use `rxjs` version 6 to prevent performance regressions within Angular applications. Once these issues have been resolved and the ES2015 code is available for use, the new project default can be updated to use version 7 but that change is limited to only major versions of Angular.
alan-agius4
approved these changes
Oct 6, 2021
|
Closing as the proposed upstream fix as been merged. |
clydin
added
target: major
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This reverts commit 7bdcd7d.
As of
rxjsversion 7 (up to and including the current 7.3.1), only the ES5 variant ofrxjscan be imported/required when bundling. ES2015 files are available but currently not resolvable via theexportsfield defined within the package. While the ES5 variant is functional, it can lead to larger application sizes due to the extra code from the ES5 down-leveling process. This unfortunately can also lead to performance regressions with newly created applications (or applications that transition to v7) both by being larger and needing to execute more (down-leveled) code at application runtime. As a result, Angular’s current recommendation is to userxjsversion 6 to prevent performance regressions within Angular applications. Once these issues have been resolved and the ES2015 code is available for use, the new project default can be updated to use version 7 but that change is limited to only major versions of Angular.One potential solution is the following PR: ReactiveX/rxjs#6614