fix(@schematics/angular): update application schematics for module-based apps to use 'provideZoneChangeDetection' #32208
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…sed apps to use 'provideZoneChangeDetection'
Replaces deprecated 'ngZoneEventCoalescing' with 'provideZoneChangeDetection({ eventCoalescing: true })' in 'main.ts.template' in schematics for initial commit
| platformBrowser().bootstrapModule(AppModule, { | ||
| <% if(!zoneless) { %>ngZoneEventCoalescing: true,<% } %><% if(!!viewEncapsulation) { %> | ||
| defaultEncapsulation: ViewEncapsulation.<%= viewEncapsulation %><% } %> | ||
| <% if(!zoneless) { %> applicationProviders: [provideZoneChangeDetection({ eventCoalescing: true })], <% } %> |
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This provider should instead go in the module alongside provideBrowserGlobalErrorListeners: packages/schematics/angular/application/files/module-files/src/app/app__typeSeparator__module.ts.template
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Hi @atscott,
thank you for the review and for your comment!
My intention was to make this part of app the fresh module-based app look similar to the result of the bootstrap options migration
The following is an effect of the migration (tested ng20 -> ng21 and ng19 -> ng20 -> ng21):
Is there any particular reason why the migration does not remove deprecated ngZoneEventCoalescing and add provideZoneChangeDetection to the app module?
Of course, I'm happy to adjust code in the PR - just asking to get better context.
Thank you!
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add provideZoneChangeDetection to the app module?
yes. For the migration it is much harder to tell if there was already a change detection provider in the app module somewhere, including one of its imported modules. The migration would have had to instead create a separate module and add it to the imports to ensure it did not override any module providers.
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Thank you very much for sharing the context that helps me understand the decision!
I'll provide the adjustment soon.
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@atscott changes pushed 👍
I'd appreciate a review.
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PR Checklist
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PR Type
What kind of change does this PR introduce?
What is the new behavior?
This PR provides changes in scaffolding module-based apps that removes usage of deprecated
ngZoneEventCoalescingand addsprovideZoneChangeDetection({ eventCoalescing: true })in root module, to be in line with changes from #30718.Does this PR introduce a breaking change?