我想在foreach完成后执行回调，但它不能正常工作。我该怎么做呢？
var response = [];
myArray.forEach(function(data) {
data.asyncFunction(function(result) {
response.push(result);
});
}, function() {
console.log(response); // Not being called.
});
console.log(response); // (Empty) Executed before foreach finish.
因为foreach只接受一个回调。由于您正在foreach中调用异步方法，因此需要检查是否完成了所有asyn调用
var response = [];
myArray.forEach(function(data, index) {
data.asyncFunction(function(result) {
response.push(result);
if(response.length === myArray.length) {
//foreach work done
}
});
});
试试看：
myArray.forEach(function(element, index, array){
asynchronous(function(data){
if (index === myArray.length - 1) {
response.push(data);
functionAfterForEach();
}
})
});
