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Solution to the problem of binding error event to img in jquery

黄舟
黄舟Original
2017-06-27 11:23:012436browse

For example:

<img src = &#39;xxxx.jpg&#39; >

$(&#39;img&#39;).error(function(){
    $(this).attr(&#39;src&#39;,"默认图片");
})

After testing, it was found that if the original image does not exist, the image on the page will keep flickering. How to solve this problem?

$(window).load(function() { 
  $(&#39;img&#39;).each(function() {    if (!this.complete || typeof this.naturalWidth == "undefined" || this.naturalWidth == 0) { 
      this.src = &#39;http://www.tranism.com/weblog/images/broken.gif&#39;; 
      } 
   });
});

I don’t understand very well. Does the original picture refer to xxxx.jpg? If your code’s default picture path is also wrong (that is, the default picture does not exist), it will enter a dead loop , so it keeps flashing and flashing because of the constant onerror

First check whether the image is loaded successfully, and then bind the event if it fails. And just replace it once.

<img src="xxxx.jpg" alt="" /><script>jQuery(document).ready(function(){
    jQuery(&#39;img&#39;).each(function(){        var error = false;        if (!this.complete) {
            error = true;
        }        if (typeof this.naturalWidth != "undefined" && this.naturalWidth == 0) {
            error = true;
        }        if(error){
            $(this).bind(&#39;error.replaceSrc&#39;,function(){                this.src = "default_image_here.png";

                $(this).unbind(&#39;error.replaceSrc&#39;);
            }).trigger(&#39;load&#39;);
        }
    });
});</script>

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