Using Angular, you can actually access the scope and other things from the console, so when you have a live web page, you can dive in and grab things out of the scope and modify them and what not. $0 is a shortcut for the selected element in your elements. Then you can get the socpe by using:var $scope = angular.element($0).scope(); Can use this $scope to change ng-Model‘s value, to get controlle...
custom form control 之前就写过了，这里简单写一下.创建一个组件实现 ControlValueAccessor 接口@Component({providers: [{ provide: NG_VALUE_ACCESSOR, multi: true, useExisting: MyInputComponent },],
})
export class MyInputComponent implements ControlValueAccessor {}实现 writeValue, model -> view 的时候被调用的，这里实现如何更新 view. 如果时 OnPush 记得要 markForCheckwriteValue(value: any): void {console...
在 Angular 自定义表单控件，有时你想要的输入不是标准的文本输入、选择或复选框。通过实现ControlValueAccessor 接口并将组件注册为 NG_VALUE_ACCESSOR，您可以将自定义表单控件无缝地集成到模板驱动或响应表单中，就像它是本地表单一样!
ControlValueAccessor
ControlValueAccessor 是一个接口，充当Angular API 和 DOM 元素之间的桥梁
ControlValueAccessor 是一个连接表单模型和视图（DOM元素）的接口，自定义的表单控件必须实...
& controllerAs in directive, then the link()‘s 4th param ‘controller‘ will refer to the controller u defined before.
function MessageController(){var vm = this;vm.message = "Hello";}function greeting(){function link(scope, element, attrs, ctrl){ctrl.message = ctrl.message + ‘ ‘ + scope.name;}return {controller: ‘MessageController‘,controllerAs: ‘vm‘,link: link,scope: {name: ‘@‘},templ...
‘@angular/core‘;
import { ControlValueAccessor, NG_VALUE_ACCESSOR } from ‘@angular/forms‘;const COUNTER_VALUE_ACCESSOR = {provide: NG_VALUE_ACCESSOR,useExisting: forwardRef(() => StockCounterComponent),multi: true
};@Component({selector: ‘stock-counter‘,providers: [COUNTER_VALUE_ACCESSOR],styleUrls: [‘stock-counter.component.scss‘],template: `...`
})
export class StockCounterComponent impl...
divtabindex="0">
Add some css class for foucs: <div[class.focus]="focused"tabindex="0"(focus)="onFocus($event)"(blur)="onBlur($event)">.stock-counter {& .focus {box-shadow: 0 1px 1px rgba(0, 0, 0, .6);}...
} onFocus() {this.focused = true;this.onTouch();}onBlur() {this.focused = false;this.onTouch();}
Handle keydwon event with code: <div[class.focus]="focused"tabindex="0"(keydown)="on...
‘@angular/forms‘;@Directive({selector: ‘input[type=checkbox][trueFalseValue]‘,providers: [{provide: NG_VALUE_ACCESSOR,useExisting: forwardRef(() => TrueFalseValueDirective),multi: true}]
})
export class TrueFalseValueDirective implements ControlValueAccessor {@Input() trueValue = true;@Input() falseValue = false;private propagateChange = (_: any) => { };constructor(private elementRef: ElementR...
我一直试图找到一个解决方案,但到目前为止我找不到任何工作.所以我正在尝试使用angular到天气API的HTTP请求,但我一直得到这样的响应：Origin http://mydomain.com is not allowed by Access-Control-Allow-Origin. 到目前为止我尝试过的：
>将此行添加到我的应用配置中
删除$httpProvider.defaults.headers.common [‘X-Requested-With’];>我尝试了多个版本的角度,都具有相同的结果>将此添加到我的.htacces
标题添加Access-Contro...
