event-propagation

If I have an element (html) nested in another element and both of them have a click handler attached, clicking the inner element executes its click handler and then bubbles up to the parent and executes its click handler. That's how I understand it. Do events bubble up the DOM tree if there are no events attached that are the same and if so, is it worth putting a event.stopPropagation() at the end of every handler to stop this and speed things up? events almost always bubble up unless event.cancelBubble=true is set or event.stopPropagation() is used. You are only aware of it, though, when one

Here's a basic component. Both the <ul> and <li> have onClick functions. I want only the onClick on the <li> to fire, not the <ul> . How can I achieve this? I've played around with e.preventDefault(), e.stopPropagation(), to no avail. class List extends React.Component { constructor(props) { super(props); } handleClick() { // do something } render() { return ( <ul onClick={(e) => { console.log('parent'); this.handleClick(); }} > <li onClick={(e) => { console.log('child'); // prevent default? prevent propagation? this.handleClick(); }} > </li> </ul> ) } } // => parent // => child Will Stone I

What is the easiest way to stop mouse events propagation in Angular 2? Should I pass special $event object and call stopPropagation() myself or there is some other way. For example in Meteor I can simply return false from event handler. If you want to be able to add this to any elements without having to copy/paste the same code over and over again, you can make a directive to do this. It is as simple as below: import {Directive, HostListener} from "@angular/core"; @Directive({ selector: "[click-stop-propagation]" }) export class ClickStopPropagation { @HostListener("click", ["$event"]) public