js example code for reading files through the filereader interface

This article mainly introduces in detail how to read files through the filereaderinterface, and use the readAsDataURL method to preview images The related methods have certain reference value. Interested friends can refer to

Use the readAsDataURL method of the FileReader interface to preview the image.

Source code:

 
 
 
 
 

 
 
 
 
  请选择一个文件： 
   
   
 
 
   
 
 

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