JSONP callback to global variable assignment failed to resolve

varFlag =0;//callback End Flag bit
var temporary global variable;
var requires a global variable to be received;function GetDate () {
Flag = 0; //CallbackInviteservice.getactivitydetail (). Then (function (data) {Temporary global variable= data;varFlag =1;//Callback End}) wait (); }function Wait () {if(flag==1){        //Receive data
Global variable to be received = temporary global variable;}else{
Wait ();
}}    

Idea: Set the callback end flag bit, wait for the JSONP callback to execute the complete end, and then pass the data

Cause: The global variable is not successfully assigned in the callback function

JSONP callback to global variable assignment failed to resolve