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AngularJS - project files layout, injection and scope clarification


AngularJS - project files layout, injection and scope clarification

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AngularJS - project files layout, injection and scope clarification
Tag : javascript , By : suresh
Date : November 23 2020, 09:01 AM

help you fix your problem While this structure does fall within Google's style guidelines, most smaller applications won't call for this type of strictness, especially in the prototyping phase. As a result, hanging your services, directives and factories off of app should be fine.
angular.module('myApp', []);
angular.module('myOtherApp', []);

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Angularjs directive with isolated scope needs clarification


Tag : javascript , By : zdyne
Date : March 29 2020, 07:55 AM
Any of those help There is a simple answer to this, which applies to all the examples here. The Angular documentation on $compile explains this, but it is easy to misunderstand. The entire purpose of an isolated scope is to create a scope that is consumed ONLY by the directive that declares it. In order to do so, a new variable is created which stores the value as an alias of the parent scope.
There are 3 major definition types: @, =, &

Is $scope dependecy injection in AngularJS controller definition?


Tag : angularjs , By : user184415
Date : March 29 2020, 07:55 AM
will be helpful for those in need $scope isn't actually a service !
This is why you don't have to pass it as a dependency of the directive. $scope is a local passed to the injector, a value passed to the function, as if i would do console.log(myValue). myValue is not a service.
var $rootScope = $injector.get('$rootScope');
$injector.invoke(controller, context /*the this binding*/, {
    $scope: $rootScope.new()
});
function add(a, b) {
    return a + b;
}
function add(a, b) {
    $rootScope.$broadcast('addition.done', a + b);
    return a + b;
}
function add(a, b, $rootScope) {
    $rootScope.$broadcast('addition.done', a + b);
    return a + b;
}

var $injector = angular.injector(['ng']); // Creates the injector, with the services of `ng` module.
$injector.invoke(add); // Calls the function with the requested services
function add(a, b, $rootScope) {
    $rootScope.$broadcast('addition.done', a + b);
    return a + b;
}

var $injector = angular.injector(['ng']);
$injector.invoke(add, this, {
    a: 2, // When requesting the `a` service, return the value `2`
    b: 3 // The same here, with `b` and `3`
});

Injection of unknown provider in Angularjs Project


Tag : javascript , By : user186012
Date : March 29 2020, 07:55 AM
help you fix your problem You have to downgrade your angular-animate version to the version of Angular.
If you have used bower install then go to the bower.json file. There you can see "angular-animate": "some version", replace the value with 1.4 (or 1.5 if you are using Angular 1.5).

angularjs dependency injection $scope not working


Tag : angularjs , By : Hans-Inge
Date : March 29 2020, 07:55 AM
wish help you to fix your issue I am learning AngularJS DI concept, Can anyone tell me why below code not working? , $inject must be defined on the controller, not on the module:
var ctrl = function(a) { ... };
ctrl.$inject = ['$scope'];
myApp.controller('MyController', ctrl);

Scope injection like in AngularJS for more modern libraries


Tag : angular , By : Ben Brown
Date : March 29 2020, 07:55 AM
around this issue
Is this possible with either VueJS, React or Angular? With good old JavaScript outside the compiled package to inject into components and change their behavior?
export class Controller {
  onClick = () => {/* general implementation */};
}

export const component = {
  template: '<button ng-click="$ctrl.onClick()">Button</button>',                                    
  controller: Controller
};

export default angular.module('namespace.el-button', []).component('elButton', component).name;
import elButtonComponentModule from './el-button';

export default angular.module('namespace.app', [elButtonComponentModule, ...]).name;
import { Controller as OriginalController, component as originalComponent } from './el-button';

export class Controller extends OriginalController {
  onClick = () => {/* my implementation */};
}

export const component = {
  ...originalComponent,
  controller: Controller
};

export default angular.module('namespace.el-button', []).component('elButton', component).name;
import generalAppModule from './general-app';
import myElButtonComponentModule from './my-el-button';

export default angular.module('my.app', [generalAppModule, myElButtonComponentModule]).name;
<button (click)="onClick()">Button</button>
@Component({
  selector: 'el-button',
  templateUrl: require('./el-button.html')
})
export default class ElButton {
  onClick() {/* general implementation */}
}
import ElButton from './el-button';

@NgModule({
  declarations: [ElButton, ...], ...
})
...
import OriginalComponent from './el-button';

@Component({
  selector: 'el-button',
  templateUrl: require('./el-button.html')
})
export class ElButton {
  onClick() {/* my implementation */}
}
import ElButton from './my-el-button';

@NgModule({
  declarations: [ElButton, ...], ...
})
...
export default Vue.component('el-button', {
  template: `<button @click="onClick">Button</button>`,
  methods: {
    onClick() {/* general implementation */}
  }
};
import OriginalComponent from './el-button';

export default Vue.component('el-button', OriginalComponent.extends({
  methods: {
    onClick() {/* my implementation */}
  }
};
const ElButtonContext = React.createContext({
   onClick() {/* general implementation */}
});

const ElButton = () => {
   const { onClick } = React.useContext(ElButtonContext);
   return <button onClick={onClick}>Button</button>;
}
<ElButtonContext.Provider value={ onClick() {/* my implementation */} }>
  <ComponentThatUsesElButton/>
</ElButtonContext.Provider>
import OriginalComponent from '@aliased-el-button-module';

function onClick() {/* my implementation */}

const ElButton = props => {
   const el = OriginalComponent(props); // a hack that heavily depends on the implementation
   el.props.onClick = onClick;
   return el;
}
const ElButton = () => {...};

const ComponentThatUsesElButton = () => (
  <window.myNamespace.ElButton /> // ugh!
);

window.myNamespace = {
  React,
  ElButton,
  ComponentThatUsesElButton,
  ...
};
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