如何为异步函数制作异步包装函数？

Question

我有＆＃39; func1＆＃39;包裹异步＆＃39; func2＆＃39;喜欢：

func1 = function(arg1) {
    func2 (arg1, function(result) {
       // parse and return some parts of 'result'
    }, function(error) {
       alert (error.message);
    })
}

如何制作＆＃39; func1＆＃39;也是异步（对于外部代码）。

Answer 1

function wrapper(callback) {//async callback is the standard for most libs func1(arg1);//call that original func1 you defined. callback(); //first arg is error, second is result (you don't have any result so it is empty) }