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jQuery can give priority to local preview when uploading images

php中世界最好的语言Original: 2018-06-12 15:16:291383browse

This time I will bring you jQuery to give priority to local preview when uploading images. What are the precautions for jQuery to give priority to local preview when uploading images? The following is a practical case, let's take a look.

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>jquery上传图片本地预览效果</title>
</head>
<body>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.8.2.min.js"></script>
<input id="upload" type="file">
<img id="preview" src="">
<script type="text/javascript">
$('#upload').change(function(){
  // 获取FileList的第一个元素
  alert(document.getElementById('upload').files[0]);
  var f = document.getElementById('upload').files[0];
  src = window.URL.createObjectURL(f);
  document.getElementById('preview').src = src
})
</script>
</body>
</html>

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!

jQuery can give priority to local preview when uploading images

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