使用 javascript 检测外部 div 的单击

You can check if the clicked Element is the div you want to check or not:

document.getElementById('outer-container').onclick = function(e) {
if(e.target != document.getElementById('content-area')) {
console.log('You clicked outside');
} else {
console.log('You clicked inside');
}
}

Referring to Here.

you can apply if check for that inside your click event

if(event.target.parentElement.id == 'yourID')

Try this solution it uses pure javascript and it solves your problem. I added css just for better overview... but it is not needed.

document.getElementById('outer-div').addEventListener('click', function(){
alert('clicked outer div...');
});


document.getElementById('inner-div').addEventListener('click', function(e){
e.stopPropagation()
alert('clicked inner div...');
});

#outer-div{
width: 200px;
height: 200px;
position: relative;
background: black;
}


#inner-div{
top: 50px;
left: 50px;
width: 100px;
height: 100px;
position: absolute;
background: red;
}

<div id="outer-div">
<div id="inner-div">
</div>
</div>

It depends on the individual use case but it sounds like in this example there are likely to be other nested elements inside the main div e.g. more divs, lists etc. Using Node.contains would be a useful way to check whether the target element is within the div that is being checked.

window.addEventListener('click', function(e){
if (document.getElementById('clickbox').contains(e.target)){
// Clicked in box
} else{
// Clicked outside the box
}
});

An example that has a nested list inside is here.

I came up with a hack for this that's working well for me and that might help others.

When I pop up my dialog DIV, I simultaneously display another transparent DIV just behind it, covering the whole screen.

This invisible background DIV closes the dialog DIV onClick.

This is pretty straightforward, so I'm not going to bother with the code here. LMK in the comments if you want to see it and I'll add it in.

HTH!

In Angular 6 and IONIC 3, I do same as here:

import {Component} from 'angular/core';


@Component({
selector: 'my-app',
template: `
<ion-content padding (click)="onClick($event)">
<div id="warning-container">
</div>
</ion-content>
`
})
export class AppComponent {
onClick(event) {
var target = event.target || event.srcElement || event.currentTarget;
if (document.getElementById('warning-container').contains(target)){
// Clicked in box
} else{
// Clicked outside the box
}
}
}

This working fine on web/android/ios. It might be helpful for someone, Thanks.

I recently needed a simple vanilla JS solution which solves for:

• Ignoring specific selectors including whether a parent contains one of these selectors
• Ignoring specific DOM nodes

This solution has worked quite well in my app.

const isClickedOutsideElement = ({ clickEvent, elToCheckOutside, ignoreElems = [], ignoreSelectors = [] }) => {
const clickedEl = clickEvent.srcElement;
const didClickOnIgnoredEl = ignoreElems.filter(el => el).some(element => element.contains(clickedEl) || element.isEqualNode(clickedEl));
const didClickOnIgnoredSelector = ignoreSelectors.length ? ignoreSelectors.map(selector => clickedEl.closest(selector)).reduce((curr, accumulator) => curr && accumulator, true) : false;


if (
isDOMElement(elToCheckOutside) &&
!elToCheckOutside.contains(clickedEl) &&
!didClickOnIgnoredEl &&
!didClickOnIgnoredSelector
){
return true;
}


return false;
}


const isDOMElement = (element) => {
return element instanceof Element || element instanceof HTMLDocument;
}

In React you can use useClickOutside hook from react-cool-onclickoutside.

Demo from Github:

import { useClickOutside } from 'use-events';


const Example = () => {
const ref1 = React.useRef(null);
const ref2 = React.useRef(null);
const [isActive] = useClickOutside([ref1, ref2], event => console.log(event));


return (
<div>
<div ref={ref1} style=\{\{ border: '1px dotted black' }}>
You are {isActive ? 'clicking' : 'not clicking'} outside of this div
</div>
<br />
<div ref={ref2} style=\{\{ border: '1px dotted black' }}>
You are {isActive ? 'clicking' : 'not clicking'} outside of this div
</div>
</div>
);
};

Live demo