Angular 7, Extension method with NgModel
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I have a global.d.ts file which has the following extension method declaration:
declare global
interface Object
isEmpty(this: Object): boolean;
And an object-extension file which has the implementation:
Object.prototype.isEmpty = function (this: any) : boolean
return true;//some logic
;
in main.ts I import the object-extension file.
Extension method works just fine. BUT
When I have a component with [(ngModel)] in it (in an input tag), it yields the below error:
ERROR Error: Uncaught (in promise): Error: @Output isEmpty not initialized in 'NgModel'. Error: @Output isEmpty not initialized in 'NgModel'.
at createDirectiveInstance (core.js:18560)
at createViewNodes (core.js:19776)
at callViewAction (core.js:20092)
at execComponentViewsAction (core.js:20011)
at createViewNodes (core.js:19804)
at createRootView (core.js:19690)
at callWithDebugContext (core.js:20722)
at Object.debugCreateRootView [as createRootView] (core.js:20208)
at ComponentFactory_.push../node_modules/@angular/core/fesm5/core.js.ComponentFactory_.create (core.js:18029)
at ComponentFactoryBoundToModule.push../node_modules/@angular/core/fesm5/core.js.ComponentFactoryBoundToModule.create (core.js:7812)
at createDirectiveInstance (core.js:18560)
at createViewNodes (core.js:19776)
at callViewAction (core.js:20092)
at execComponentViewsAction (core.js:20011)
at createViewNodes (core.js:19804)
at createRootView (core.js:19690)
at callWithDebugContext (core.js:20722)
at Object.debugCreateRootView [as createRootView] (core.js:20208)
at ComponentFactory_.push../node_modules/@angular/core/fesm5/core.js.ComponentFactory_.create (core.js:18029)
at ComponentFactoryBoundToModule.push../node_modules/@angular/core/fesm5/core.js.ComponentFactoryBoundToModule.create (core.js:7812)
at resolvePromise (zone.js:814)
at resolvePromise (zone.js:771)
at zone.js:873
at ZoneDelegate.push../node_modules/zone.js/dist/zone.js.ZoneDelegate.invokeTask (zone.js:421)
at Object.onInvokeTask (core.js:14134)
at ZoneDelegate.push../node_modules/zone.js/dist/zone.js.ZoneDelegate.invokeTask (zone.js:420)
at Zone.push../node_modules/zone.js/dist/zone.js.Zone.runTask (zone.js:188)
at drainMicroTaskQueue (zone.js:595)
angular typescript angular6 angular7
edited Nov 16 at 17:32
Goncalo Peres
1,1951314
asked Nov 11 at 13:35
Ori Refael
1,21321644
add a comment |
up vote
1
down vote
favorite
I have a global.d.ts file which has the following extension method declaration:
declare global
interface Object
isEmpty(this: Object): boolean;
And an object-extension file which has the implementation:
Object.prototype.isEmpty = function (this: any) : boolean
return true;//some logic
;
in main.ts I import the object-extension file.
Extension method works just fine. BUT
When I have a component with [(ngModel)] in it (in an input tag), it yields the below error:
ERROR Error: Uncaught (in promise): Error: @Output isEmpty not initialized in 'NgModel'. Error: @Output isEmpty not initialized in 'NgModel'.
at createDirectiveInstance (core.js:18560)
at createViewNodes (core.js:19776)
at callViewAction (core.js:20092)
at execComponentViewsAction (core.js:20011)
at createViewNodes (core.js:19804)
at createRootView (core.js:19690)
at callWithDebugContext (core.js:20722)
at Object.debugCreateRootView [as createRootView] (core.js:20208)
at ComponentFactory_.push../node_modules/@angular/core/fesm5/core.js.ComponentFactory_.create (core.js:18029)
at ComponentFactoryBoundToModule.push../node_modules/@angular/core/fesm5/core.js.ComponentFactoryBoundToModule.create (core.js:7812)
at createDirectiveInstance (core.js:18560)
at createViewNodes (core.js:19776)
at callViewAction (core.js:20092)
at execComponentViewsAction (core.js:20011)
at createViewNodes (core.js:19804)
at createRootView (core.js:19690)
at callWithDebugContext (core.js:20722)
at Object.debugCreateRootView [as createRootView] (core.js:20208)
at ComponentFactory_.push../node_modules/@angular/core/fesm5/core.js.ComponentFactory_.create (core.js:18029)
at ComponentFactoryBoundToModule.push../node_modules/@angular/core/fesm5/core.js.ComponentFactoryBoundToModule.create (core.js:7812)
at resolvePromise (zone.js:814)
at resolvePromise (zone.js:771)
at zone.js:873
at ZoneDelegate.push../node_modules/zone.js/dist/zone.js.ZoneDelegate.invokeTask (zone.js:421)
at Object.onInvokeTask (core.js:14134)
at ZoneDelegate.push../node_modules/zone.js/dist/zone.js.ZoneDelegate.invokeTask (zone.js:420)
at Zone.push../node_modules/zone.js/dist/zone.js.Zone.runTask (zone.js:188)
at drainMicroTaskQueue (zone.js:595)
angular typescript angular6 angular7
edited Nov 16 at 17:32
Goncalo Peres
1,1951314
asked Nov 11 at 13:35
Ori Refael
1,21321644
add a comment |
up vote
1
down vote
favorite
up vote
1
down vote
favorite
I have a global.d.ts file which has the following extension method declaration:
declare global
interface Object
isEmpty(this: Object): boolean;
And an object-extension file which has the implementation:
Object.prototype.isEmpty = function (this: any) : boolean
return true;//some logic
;
in main.ts I import the object-extension file.
Extension method works just fine. BUT
When I have a component with [(ngModel)] in it (in an input tag), it yields the below error:
ERROR Error: Uncaught (in promise): Error: @Output isEmpty not initialized in 'NgModel'. Error: @Output isEmpty not initialized in 'NgModel'.
at createDirectiveInstance (core.js:18560)
at createViewNodes (core.js:19776)
at callViewAction (core.js:20092)
at execComponentViewsAction (core.js:20011)
at createViewNodes (core.js:19804)
at createRootView (core.js:19690)
at callWithDebugContext (core.js:20722)
at Object.debugCreateRootView [as createRootView] (core.js:20208)
at ComponentFactory_.push../node_modules/@angular/core/fesm5/core.js.ComponentFactory_.create (core.js:18029)
at ComponentFactoryBoundToModule.push../node_modules/@angular/core/fesm5/core.js.ComponentFactoryBoundToModule.create (core.js:7812)
at createDirectiveInstance (core.js:18560)
at createViewNodes (core.js:19776)
at callViewAction (core.js:20092)
at execComponentViewsAction (core.js:20011)
at createViewNodes (core.js:19804)
at createRootView (core.js:19690)
at callWithDebugContext (core.js:20722)
at Object.debugCreateRootView [as createRootView] (core.js:20208)
at ComponentFactory_.push../node_modules/@angular/core/fesm5/core.js.ComponentFactory_.create (core.js:18029)
at ComponentFactoryBoundToModule.push../node_modules/@angular/core/fesm5/core.js.ComponentFactoryBoundToModule.create (core.js:7812)
at resolvePromise (zone.js:814)
at resolvePromise (zone.js:771)
at zone.js:873
at ZoneDelegate.push../node_modules/zone.js/dist/zone.js.ZoneDelegate.invokeTask (zone.js:421)
at Object.onInvokeTask (core.js:14134)
at ZoneDelegate.push../node_modules/zone.js/dist/zone.js.ZoneDelegate.invokeTask (zone.js:420)
at Zone.push../node_modules/zone.js/dist/zone.js.Zone.runTask (zone.js:188)
at drainMicroTaskQueue (zone.js:595)
angular typescript angular6 angular7
edited Nov 16 at 17:32
Goncalo Peres
1,1951314
asked Nov 11 at 13:35
Ori Refael
1,21321644
I have a global.d.ts file which has the following extension method declaration:
declare global
interface Object
isEmpty(this: Object): boolean;
And an object-extension file which has the implementation:
Object.prototype.isEmpty = function (this: any) : boolean
return true;//some logic
;
in main.ts I import the object-extension file.
Extension method works just fine. BUT
When I have a component with [(ngModel)] in it (in an input tag), it yields the below error:
ERROR Error: Uncaught (in promise): Error: @Output isEmpty not initialized in 'NgModel'. Error: @Output isEmpty not initialized in 'NgModel'.
at createDirectiveInstance (core.js:18560)
at createViewNodes (core.js:19776)
at callViewAction (core.js:20092)
at execComponentViewsAction (core.js:20011)
at createViewNodes (core.js:19804)
at createRootView (core.js:19690)
at callWithDebugContext (core.js:20722)
at Object.debugCreateRootView [as createRootView] (core.js:20208)
at ComponentFactory_.push../node_modules/@angular/core/fesm5/core.js.ComponentFactory_.create (core.js:18029)
at ComponentFactoryBoundToModule.push../node_modules/@angular/core/fesm5/core.js.ComponentFactoryBoundToModule.create (core.js:7812)
at createDirectiveInstance (core.js:18560)
at createViewNodes (core.js:19776)
at callViewAction (core.js:20092)
at execComponentViewsAction (core.js:20011)
at createViewNodes (core.js:19804)
at createRootView (core.js:19690)
at callWithDebugContext (core.js:20722)
at Object.debugCreateRootView [as createRootView] (core.js:20208)
at ComponentFactory_.push../node_modules/@angular/core/fesm5/core.js.ComponentFactory_.create (core.js:18029)
at ComponentFactoryBoundToModule.push../node_modules/@angular/core/fesm5/core.js.ComponentFactoryBoundToModule.create (core.js:7812)
at resolvePromise (zone.js:814)
at resolvePromise (zone.js:771)
at zone.js:873
at ZoneDelegate.push../node_modules/zone.js/dist/zone.js.ZoneDelegate.invokeTask (zone.js:421)
at Object.onInvokeTask (core.js:14134)
at ZoneDelegate.push../node_modules/zone.js/dist/zone.js.ZoneDelegate.invokeTask (zone.js:420)
at Zone.push../node_modules/zone.js/dist/zone.js.Zone.runTask (zone.js:188)
at drainMicroTaskQueue (zone.js:595)
angular typescript angular6 angular7
angular typescript angular6 angular7
edited Nov 16 at 17:32
Goncalo Peres
1,1951314
asked Nov 11 at 13:35
Ori Refael
1,21321644
edited Nov 16 at 17:32
Goncalo Peres
1,1951314
asked Nov 11 at 13:35
Ori Refael
1,21321644
edited Nov 16 at 17:32
Goncalo Peres
1,1951314
edited Nov 16 at 17:32
Goncalo Peres
1,1951314
edited Nov 16 at 17:32
Goncalo Peres
1,1951314
1,1951314
asked Nov 11 at 13:35
Ori Refael
1,21321644
asked Nov 11 at 13:35
Ori Refael
1,21321644
asked Nov 11 at 13:35
Ori Refael
1,21321644
1,21321644
add a comment |
add a comment |
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