JS implements scheduled tasks to request background setInterval timing and ajax request issues every N seconds

This article mainly introduces JS to implement scheduled tasks to request the background every N secondssetInterval timing and ajax request related JS information, friends who are interested in js can refer to this article

Look at the following piece of code first:

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

After calling the DiGui() method

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

Solution: Ensure that setIntervalobject is only created once

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

var status = true;
DiGui = function (param) {    
$.ajax({ 
 success: function (returnValue) {       
  if (status) {
   status= false; 
　　　　　　　window.setInterval("DiGui()", 5000); 
　　　　}
 　　} 
　});

The above is the JS implementation of scheduled tasks introduced by the editor to request background setInterval timing and ajax request issues every N seconds. I hope it will be helpful to everyone! !

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