In jquery, how does ajax return results rather than callback is executed in the same order?

Because ajax is asynchronous by default, that is, the downstream execution is not affected when the result is not returned. Therefore, the callback method must be used. This solution is more efficient.

If you want to return the result, change async in ajax to false, that is, execute in the same order. The result can be returned as follows.

However, this approach is not recommended unless necessary.
Copy codeThe Code is as follows:
Function (url, params ){
Var outdata;
$. Ajax ({
Type: "get ",
Async: false,
DataType: "json ",
Url: url,
Data: params,
Success: function (data ){
Outdata = data;
},
Error: function (e ){
Alert ('ajax error ');
}
});

Return outdata;
}