Implement local image preview based on JavaScript

The example in this article shares the specific code for js local image preview for your reference. The specific content is as follows

      
  fileReader createURL 
     

fileReader.readAsDataURL

URL .createObjectURL

It can be seen that the URL actually starts with "blob:", followed by a 32-bit UUID (8-4-4-4-12) structure.

The above is the entire content of this article. I hope it will be helpful to everyone's learning. I also hope that everyone will support the PHP Chinese website.

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