JS implements scheduled tasks, requesting background setInterval timing and ajax requests every N seconds

DiGui = function (param) { $.ajax({ success: function (returnValue) { window.setInterval("fnSetMarkPoint()", 5000); } });

After calling theDiGui() method

Problem: Create a setInterval every 0.1 seconds in a tree shape Create setInterval in a loop until the page crashes

Solution: Ensure that the setInterval object is only created once

Implementation plan: Define a Boolean variable for judgment var status= true;

status = = .: = .setInterval("()", 5000

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