我们有一些类似的问题。请编辑您的问题告诉我们，正是你所需要的。

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hi Some operations are time costly and it takes long time while waiting them to finish. Sometimes timeout occurs. I want to use a real time progress bar, so I want to show the status to the user and also I want to prevent timeout. Which technologies must I use? JS, Ajax, multithread or both? and how can I iplement this? Please advice.

We have some similar questions. Please edit your question to tell us exactly what you need.

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