Shulou(Shulou.com)06/02 Report--

This article mainly introduces the "jQuery+ajax file upload progress bar". In the daily operation, I believe that many people have doubts about the jQuery+ajax file upload progress bar. The editor consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful to answer the doubts of "jQuery+ajax file upload progress bar". Next, please follow the editor to study!

XMLHttpRequest.upload listens to the progress when uploading files to the backend, mainly using the upload method provided by XMLHttpRequest, which returns a XMLHttpRequestUpload object to indicate the upload progress. -- XMLHttpRequest.upload

FormData is a new interface provided by XMLHttpRequest. The main advantage is that binary files can be uploaded asynchronously. -- FormData

The specific operations are as follows

Page structure and style

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