A series of problem handling caused by the async of Vue

1, the original project using jquery implementation to Vue, calling the parameters of the interface Ajax nested calls, resulting in a second Axios request completely no response, even the request is not sent, it is very strange;

Solution: Listen for a property (the first time an AJAX request gets the parameters) whether the change, change and then call the second function can

Watch: {' param ': {handler: (val, oldval) = {monitor param (also can listen for changes inside Param)}, deep:true} } 2, the parameters before the request interface, need to be processed, to simplify the code call function return value assigned to this parameter, but because Vue is an asynchronous problem, it does not wait for the function to pass the value to the parameter and then send the request to execute simultaneously, resulting in the transfer of the parameter is the initial value, not processed;

The same can be used to listen, when the function is called, a variable value changes, and then listen to call AJAX requests;

Of course these can also use timer delay, but certainly not the best solution;

Hope to have a better solution to provide;