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

韦小宝
Release: 2018-01-12 09:53:06
Original
2400 people have browsed it

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); 
 }
});
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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); 
    }
   } 
 });
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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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