angular-ivy

问题 I set strictTemplates:true and use in a HTML template the following <textarea matInput matAutosizeMaxRows="4" matTextareaAutosize="true" I receive from the compiler error TS2322: Type 'string' is not assignable to type 'number'. error TS2322: Type 'string' is not assignable to type 'boolean'. But how to set it properly in the HTML-Templates (to avoid the error)? 回答1: Wrap the property name in brackets. If you leave the brackets, the values will be interpreted as strings. With brackets, the

问题 I've updated my app to 9 version. Everything is alright but I've problem with strictTemplates set to true. For instance this code loaded$: Observable<boolean> [loaded]="loaded$ | async" @Input() loaded!: boolean; I've got the error Type 'boolean | null' is not assignable to type 'boolean'. This fix the error @Input() loaded!: boolean | null; But I cant see the point someone acn explain me, please? 回答1: the reason is because the async pipes return signature is something like <T>(input$:

问题 This article mentions that Ivy opens a few possibilities for the future though. It should now be possible to run an application without zone.js, and to semi-manually handle change detection (a bit like you would with React). These APIs already exist but are experimental, not documented, and will probably change in the near future. I think it was already possible to run an application without zone.js prior to Ivy. Does Ivy allow to semi-manually handle change detection? Where are those

问题 This article mentions that Ivy opens a few possibilities for the future though. It should now be possible to run an application without zone.js, and to semi-manually handle change detection (a bit like you would with React). These APIs already exist but are experimental, not documented, and will probably change in the near future. I think it was already possible to run an application without zone.js prior to Ivy. Does Ivy allow to semi-manually handle change detection? Where are those

问题 I created an Angular application under 4. I have migrated from version to version and am currently latest version 9. I was reviewing my tests. I have a Login component that I had 3 working tests and now all are failing. It is now returning the following: LoginComponent should be created ... Failed: unreachable Error: unreachable at injectableDefOrInjectorDefFactory (http://localhost:9876/_karma_webpack_/node_modules/@angular/core/__ivy_ngcc__/fesm2015/core.js:17302:1) at providerToFactory

问题 Can anyone give a clear explanation of why in the IVY compiler, entry components API Is not necessary anymore?. In other words what was change internally so that Angular suddenly doesn't need a heads up that you are going to create component dynamically 回答1: ViewEngine Prior to Ivy, ViewEngine compiler performed the whole program analysis based on NgModule configurations and html template and then produced module and component factories based on this global transitive information. This means

来源： https://stackoverflow.com/questions/64445660/angular-stricttemplates-how-to-assign-variables-properly

问题 We have recently upgraded our angular app to the latest version of Angular (Angular v9). All our dependencies are also upgraded, "ng update" says all our dependencies are "in order". When we build the application with Ivy enabled the compilation process fails with a ton of errors, which we've never encountered before: "angularCompilerOptions": { "enableIvy": true } Some of the errors are very odd, saying that you can't bind 'ngClass' or 'ngModel' since it's not a know property of 'div'. It

问题 We have recently upgraded our angular app to the latest version of Angular (Angular v9). All our dependencies are also upgraded, "ng update" says all our dependencies are "in order". When we build the application with Ivy enabled the compilation process fails with a ton of errors, which we've never encountered before: "angularCompilerOptions": { "enableIvy": true } Some of the errors are very odd, saying that you can't bind 'ngClass' or 'ngModel' since it's not a know property of 'div'. It

问题 I have migrated my angular 7 app to 8.0.0 and i'am now trying the new compiler ivy. The app works perfectly without ivy but when i try to compile with it i have the following error : Cannot combine @Input decorators with query decorators No line number , no file , nothing ... hard to debug anything. I have warning just before that , but i don't know if it's related : WARNING in Entry point 'angular-tree-component' contains deep imports into 'lodash/defaultsDeep', 'lodash/get', 'lodash/omit',