How to make preloader?

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felony13twelve2020-08-12 23:48:48

Web development

felony13twelve, 2020-08-12 23:48:48

Can you please tell me how to implement preloader? I mean, look. I will have records in the database, and there will be one 'search' field, by default 0, if I click on the button, then it needs to search for the value 1, if it does not find it, then it needs to wait in real time for that moment until there will be a value of 1 if it is found, then do something.

Sorry I can't explain well :(

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