jQuery previews locally before uploading images

This time I bring you jQueryUploadLocal priority preview before uploading pictures. What are the precautions for jQuery to preview locally before uploading pictures? The following are Let’s take a look at practical cases.

nbsp;html>


<meta>
<title>jquery上传图片本地预览效果</title>


<script></script>
<input>
<img  alt="jQuery previews locally before uploading images" >
<script>
$(&#39;#upload&#39;).change(function(){
  // 获取FileList的第一个元素
  alert(document.getElementById(&#39;upload&#39;).files[0]);
  var f = document.getElementById(&#39;upload&#39;).files[0];
  src = window.URL.createObjectURL(f);
  document.getElementById(&#39;preview&#39;).src = src
})
</script>

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!

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