您必须将resize事件绑定到窗口对象上，而不是绑定到通用html元素上。

然后你可以使用这个:

$(window).resize(function() {
    ...
});

在回调函数中，你可以检查div调用的新宽度

$('.a-selector').width();

因此，您的问题的答案是否定的，您不能将resize事件绑定到div。

只有窗口对象生成“调整大小”事件。我所知道的唯一方法是运行一个间隔计时器，定期检查大小。

ResizeSensor.js是一个巨大库的一部分，但我把它的功能简化为:

function ResizeSensor(element, callback)
{
    let zIndex = parseInt(getComputedStyle(element));
    if(isNaN(zIndex)) { zIndex = 0; };
    zIndex--;

    let expand = document.createElement('div');
    expand.style.position = "absolute";
    expand.style.left = "0px";
    expand.style.top = "0px";
    expand.style.right = "0px";
    expand.style.bottom = "0px";
    expand.style.overflow = "hidden";
    expand.style.zIndex = zIndex;
    expand.style.visibility = "hidden";

    let expandChild = document.createElement('div');
    expandChild.style.position = "absolute";
    expandChild.style.left = "0px";
    expandChild.style.top = "0px";
    expandChild.style.width = "10000000px";
    expandChild.style.height = "10000000px";
    expand.appendChild(expandChild);

    let shrink = document.createElement('div');
    shrink.style.position = "absolute";
    shrink.style.left = "0px";
    shrink.style.top = "0px";
    shrink.style.right = "0px";
    shrink.style.bottom = "0px";
    shrink.style.overflow = "hidden";
    shrink.style.zIndex = zIndex;
    shrink.style.visibility = "hidden";

    let shrinkChild = document.createElement('div');
    shrinkChild.style.position = "absolute";
    shrinkChild.style.left = "0px";
    shrinkChild.style.top = "0px";
    shrinkChild.style.width = "200%";
    shrinkChild.style.height = "200%";
    shrink.appendChild(shrinkChild);

    element.appendChild(expand);
    element.appendChild(shrink);

    function setScroll()
    {
        expand.scrollLeft = 10000000;
        expand.scrollTop = 10000000;

        shrink.scrollLeft = 10000000;
        shrink.scrollTop = 10000000;
    };
    setScroll();

    let size = element.getBoundingClientRect();

    let currentWidth = size.width;
    let currentHeight = size.height;

    let onScroll = function()
    {
        let size = element.getBoundingClientRect();

        let newWidth = size.width;
        let newHeight = size.height;

        if(newWidth != currentWidth || newHeight != currentHeight)
        {
            currentWidth = newWidth;
            currentHeight = newHeight;

            callback();
        }

        setScroll();
    };

    expand.addEventListener('scroll', onScroll);
    shrink.addEventListener('scroll', onScroll);
};

如何使用:

let container = document.querySelector(".container");
new ResizeSensor(container, function()
{
    console.log("dimension changed:", container.clientWidth, container.clientHeight);
});

有一种非常有效的方法来确定元素的大小是否已经改变。

http://marcj.github.io/css-element-queries/

这个库有一个resizessensor类，可以用于调整大小检测。它使用基于事件的方法，所以它非常快，而且不会浪费CPU时间。

例子:

new ResizeSensor(jQuery('#divId'), function(){ 
    console.log('content dimension changed');
});

请不要使用jQuery onresize插件，因为它使用setTimeout()结合在循环中读取DOM clienttheight /clientWidth属性来检查更改。这是令人难以置信的缓慢和不准确，因为它会导致布局抖动。

披露:我与这个库直接相关。

var div = document.getElementById('div'); div.addEventListener('resize', (event) => console.log(event.detail)); function checkResize (mutations) { var el = mutations[0].target; var w = el.clientWidth; var h = el.clientHeight; var isChange = mutations .map((m) => m.oldValue + '') .some((prev) => prev.indexOf('width: ' + w + 'px') == -1 || prev.indexOf('height: ' + h + 'px') == -1); if (!isChange) return; var event = new CustomEvent('resize', {detail: {width: w, height: h}}); el.dispatchEvent(event); } var observer = new MutationObserver(checkResize); observer.observe(div, {attributes: true, attributeOldValue: true, attributeFilter: ['style']}); #div {width: 100px; border: 1px solid #bbb; resize: both; overflow: hidden;} <div id = "div">DIV</div>

我认为这是不可能的，但后来我想了一下，你可以手动调整一个div通过style="resize: both;"为了做到这一点，你必须点击它，所以添加了一个onclick函数来检查元素的高度和宽度，它工作。只有5行纯javascript(当然可以更短) http://codepen.io/anon/pen/eNyyVN

<div id="box" style="
                height:200px; 
                width:640px;
                background-color:#FF0066;
                resize: both;
                overflow: auto;" 
                onclick="myFunction()">
    <p id="sizeTXT" style="
                font-size: 50px;">
       WxH
    </p>
    </div>

<p>This my example demonstrates how to run a resize check on click for resizable div.</p>

<p>Try to resize the box.</p>


<script>
function myFunction() {
var boxheight = document.getElementById('box').offsetHeight;
var boxhwidth = document.getElementById('box').offsetWidth;
var txt = boxhwidth +"x"+boxheight;
document.getElementById("sizeTXT").innerHTML = txt;
}
</script>