1. Shadow DOM 需要一层一层 parentNode.host 才能 query 到 parent element,Angular 不需要这么麻烦,它可以直接 inject 祖先组件实例。 2. 虽然 Angular inject 祖先组件实例很方便,但那不是 element,要拿到 element 需要在祖先组件 inject(ElementRef),这个超级麻烦,代码管理也严重扣分。 3. DI 走的是 NodeInject...
link: function (scope, element, attrs) { element.bind("keydown keypress", function (event) { if (event.keyCode === 13) { element.click(); } }); } }; return directive; } })();
click属性里面编写方法 ts Click2@Directive({selector:'[click.long]'})exportclassclickLongDirectiveimplementsOnDestroy{/*设置一个方法,两s后执行*/privateclickTimer:any;@Output('click.long')longClickEvent =newEventEmitter();@HostListener('mousedown')onMouse(){clearTimeout(this.clickTimer);this.click...
return function (scope, element) { element.on("click", function() { //修改scope.value模型的值,观察视图变化 scope.value="yalishizhude" //疑问1:执行结果怎么是 "" ? console.log(document.getElementById('span').textContent) }); }; }); app.controller("ctrl", function($scope) { var e ...
Similarly,whenanAngularJSscopeisdestroyed,itbroadcastsadestroy event to listening scopes. 这里有几个AngularJS触发的特殊事件。当一个DOM节点被angular编译后,销毁了,它会触发destroy时间。同样的,当时一个AngularJS作用域销毁了,它将广播destroy事件到监听的作用域。 By listening to this event, you can remove ...
1、使用场景 项目里将element-ui的el-upload写成公共组件方便调用,官方的before-upload方法用于处理上传前要做的事,如:比较文件大小,限制文件类型等,通过返回true 或 false...当该组件调用父组件方法,并且要能获取到父组件方法的返回值,如何实现? 2、问题说明 通常子组件调用父组件方法:this...$emit(方法名, 传...
How do I get the directive to only be applied on an event? When the button is clicked for example? I thought I could use another attribute to specify the event e.g. ctx-trigger="click" and then in the compile function do element.bind(attr['ctxTrigger'],...) but that didn't work...
| [](https://github.com/angular/angular/commit/d1e83e1b30f2cea9f2ed16bff2d3b969335072ab) | add `createComponent` function (#46685) | | [![feat - 10becab70e](https://img.shields.io/badge/10becab70e...
tooltip-controller=""String()''Set a controller to your external tooltip template tooltip-smart=""String(Boolean)falseSet the tooltip to automatically search the best position on the screen tooltip-show-trigger=""String('event1 event2')'mouseover'Show the tooltip on specific event/events ...
dnd-selectedCallback that is invoked when the element was clicked but not dragged. The original click event will be provided in the localeventvariable.Demo dnd-callbackCustom callback that is passed to dropzone callbacks and can be used to communicate between source and target scopes. The dropzo...