How to read the progress bar of learning

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my question is:
there are 6 short class videos under a category. Every time I learn a lesson, the progress bar will move forward a little bit, but the (time) of each video is different. How should I monitor the video, whether to read the video time or the size and bitrate. And if I don"t finish watching every class, or if I watch each video for a different time, how can I monitor and read, show the status of the progress bar, and ask for advice? I don"t have any ideas, and I use .net development

in the background.

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Asp.net javascript

Mar.13,2021

this function:

.net writes the API to record the playback progress of each video, only those that have been played for the longest time (to prevent users from playback and re-record)
h5 tag with video playback, even with other video playback plug-ins, there will certainly be an interface for playback progress to transmit data to the interface in time by polling (of course, by other means)

No matter what kind of function, at least get the data first

schedule problem 6 videos you all know the time, find a sum, and then sum up each progress, which is the sum of the video playback time / the sum of each video duration

personally, I think it is difficult to express the learning progress of each video with an overall progress
as for how to monitor the video
see what plug-ins you use
each plug-in is called in a different way
it's best to check the documentation

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