回调的Javascript可选参数
我想做一些类似于回调的Javascript可选参数,javascript,Javascript,我想做一些类似于$.ajax()成功和错误回调的事情 这就是我到目前为止所做的: var FileManager = { LoadRequiredFiles: function (onLoadingCallback, onCompleteCallback) { //Not sure what to do here this.OnLoading = onLoadingCallback;
$.ajax()
成功和错误回调的事情
这就是我到目前为止所做的:
var FileManager = {
LoadRequiredFiles: function (onLoadingCallback, onCompleteCallback) {
//Not sure what to do here
this.OnLoading = onLoadingCallback;
this.OnCompleteCallback = onCompleteCallback;
this.OnLoading();
this.OnComplete();
},
OnLoading: function () {
//empty by default
}
OnComplete: function () {
//empty by default
}
};
//I want to do something like this:
FileManager.LoadRequiredFiles({OnLoading: function() {
alert('loading');
}
});
我怎样才能把它修好?我正在使用
FileManager
作为我的命名空间。您可以检查函数是否已定义:
var FileManager = {
LoadRequiredFiles: function (config) {
config = config || {};
this.OnLoading = config.onLoadingCallback;
this.OnCompleteCallback = config.onCompleteCallback;
if(typeof this.OnLoading =='function') {
this.OnLoading();
}
//Or use the shortcut:
if(this.OnComplete) {
this.OnComplete();
}
}
};
FileManager.LoadRequiredFiles(
{
onLoadingCallback: function() {
alert('loading');
}
}
);
您可以检查功能是否已定义:
var FileManager = {
LoadRequiredFiles: function (config) {
config = config || {};
this.OnLoading = config.onLoadingCallback;
this.OnCompleteCallback = config.onCompleteCallback;
if(typeof this.OnLoading =='function') {
this.OnLoading();
}
//Or use the shortcut:
if(this.OnComplete) {
this.OnComplete();
}
}
};
FileManager.LoadRequiredFiles(
{
onLoadingCallback: function() {
alert('loading');
}
}
);
设置参数怎么样?我不知道我所做的是否正确,以匹配我希望能够调用该方法的方式。设置参数如何?我不知道我所做的是否正确,以匹配我希望能够调用该方法的方式。