JavaScript Asynchronous Programming

1 $.get ($C. apipath+ ' Ucenter/padcharge/findmember ', {id:memberid},function(data) {2      if(data.error) {3        layer.close (memberlayer); 4         padinout (padid,memberid); 5         allpads (); 6     }7 });           

1 function Padinout (padid,memberid,callback) {2         $F. postloading ($C. Apipath + ' ucenter/padcharge/ Padinout ', {id:padid,memberid:memberid},function(data) {3                 if( Callback) callback ()4        }); 5 };

Executes the callback function when the method finishes executing and the callback function is present. At this point, the function is executed by means of a parameter: Padinout (padid,memberid,allpads) callback function is a common method of JS asynchronous programming. However, there is a bad place to use the callback function, which will cause a callback to hell. So ES new standards are also constantly seeking to solve the callback scheme. This is something, this article is written here.

JavaScript Asynchronous Programming