检查窗口单击事件目标（它应该传播到窗口，只要它没有在其他地方被捕获），并确保它不是任何菜单元素。如果不是，那么你就在菜单之外。

或者检查单击的位置，看看它是否包含在菜单区域中。

外部点击插件！

用法：

$('.target-element').outsideClick(function(event){
    //code that fires when user clicks outside the element
    //event = the click event
    //$(this) = the '.target-element' that is firing this function 
}, '.excluded-element')

它的代码：

(function($) {

//when the user hits the escape key, it will trigger all outsideClick functions
$(document).on("keyup", function (e) {
    if (e.which == 27) $('body').click(); //escape key
});

//The actual plugin
$.fn.outsideClick = function(callback, exclusions) {
    var subject = this;

    //test if exclusions have been set
    var hasExclusions = typeof exclusions !== 'undefined';

    //switches click event with touch event if on a touch device
    var ClickOrTouchEvent = "ontouchend" in document ? "touchend" : "click";

    $('body').on(ClickOrTouchEvent, function(event) {
        //click target does not contain subject as a parent
        var clickedOutside = !$(event.target).closest(subject).length;

        //click target was on one of the excluded elements
        var clickedExclusion = $(event.target).closest(exclusions).length;

        var testSuccessful;

        if (hasExclusions) {
            testSuccessful = clickedOutside && !clickedExclusion;
        } else {
            testSuccessful = clickedOutside;
        }

        if(testSuccessful) {
            callback.call(subject, event);
        }
    });

    return this;
};

}(jQuery));

根据此答案改编https://stackoverflow.com/a/3028037/1611058

现在是2020年，您可以使用event.composedPath（）

发件人：Event.composedPath（）

Event接口的composedPath（）方法返回事件的路径，该路径是将调用侦听器的对象数组。

const target=document.querySelector（“#myTarget”）document.addEventListener（'click'，（event）=>{const withinBoundaries=event.composedPath（）.includes（目标）if（边界内）{target.innerText='单击发生在元素内部'}其他{target.innerText='单击发生**外部**元素'}})/*只是为了让它好看。你不需要这个*/#我的目标{边距：50px自动；宽度：500px；高度：500px；背景：灰色；边框：10px实心黑色；}<div id=“myTarget”>单击我（或不单击！）</div>

首先，您必须使用mouseenter和mouseleave事件跟踪鼠标是在元素1内部还是外部。然后，您可以创建一个覆盖整个屏幕的element2来检测任何点击，并根据您是在element1内部还是外部做出相应的反应。

我强烈建议同时处理初始化和清理，出于明显的原因，element2应尽可能临时。

在下面的示例中，覆盖是位于某个位置的元素，可以通过单击内部来选择，也可以通过单击外部来取消选择。_init和_release方法是自动初始化/清理过程的一部分。该类继承自具有内部和外部元素的ClickOverlay，不用担心。我使用了outerElement.parentNode.appendChild来避免冲突。

import ClickOverlay from './ClickOverlay.js'

/* CSS */
// .unselect-helper {
//  position: fixed; left: -100vw; top: -100vh;
//  width: 200vw; height: 200vh;
// }
// .selected {outline: 1px solid black}

export default class ResizeOverlay extends ClickOverlay {
    _init(_opts) {
        this.enterListener = () => this.onEnter()
        this.innerElement.addEventListener('mouseenter', this.enterListener)
        this.leaveListener = () => this.onLeave()
        this.innerElement.addEventListener('mouseleave', this.leaveListener)
        this.selectListener = () => {
            if (this.unselectHelper)
                return
            this.unselectHelper = document.createElement('div')
            this.unselectHelper.classList.add('unselect-helper')
            this.unselectListener = () => {
                if (this.mouseInside)
                    return
                this.clearUnselectHelper()
                this.onUnselect()
            }
            this.unselectHelper.addEventListener('pointerdown'
                , this.unselectListener)
            this.outerElement.parentNode.appendChild(this.unselectHelper)
            this.onSelect()
        }
        this.innerElement.addEventListener('pointerup', this.selectListener)
    }

    _release() {
        this.innerElement.removeEventListener('mouseenter', this.enterListener)
        this.innerElement.removeEventListener('mouseleave', this.leaveListener)
        this.innerElement.removeEventListener('pointerup', this.selectListener)
        this.clearUnselectHelper()
    }

    clearUnselectHelper() {
        if (!this.unselectHelper)
            return
        this.unselectHelper.removeEventListener('pointerdown'
            , this.unselectListener)
        this.unselectHelper.remove()
        delete this.unselectListener
        delete this.unselectHelper
    }

    onEnter() {
        this.mouseInside = true
    }

    onLeave() {
        delete this.mouseInside
    }

    onSelect() {
        this.innerElement.classList.add('selected')
    }

    onUnselect() {
        this.innerElement.classList.remove('selected')
    }
}

$（'html'）.click（function（）{//隐藏菜单（如果可见）});$（'#menucontainer'）.click（函数（事件）{event.stopPropagation（）；});<script src=“https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js“></script><html><button id=“#menucontainer”>确定</button></html>

$('#propertyType').on("click",function(e){
          self.propertyTypeDialog = !self.propertyTypeDialog;
          b = true;
          e.stopPropagation();
          console.log("input clicked");
      });

      $(document).on('click','body:not(#propertyType)',function (e) {
          e.stopPropagation();
          if(b == true)  {
              if ($(e.target).closest("#configuration").length == 0) {
                  b = false;
                  self.propertyTypeDialog = false;
                  console.log("outside clicked");
              }
          }
        // console.log($(e.target).closest("#configuration").length);
      });