在JavaScript 中，callback 被當成事件迴圈回頭執行某個已在佇列中進行的程式的目標。再次舉A、B、C 三件工作的例子，其中B 必須等待C 做完才能執行，於是 ... ... <看更多>

In JavaScript, a callback is a function passed into another function as an argument to be executed later. ... To find all the odd numbers in the array, you can ... ... <看更多>

Why do we need callback instead of calling directly inside the function? in JS · javascript promise callback. I just realized that I do not ... ... <看更多>

Node expects - almost - all callback functions to accept an Error object as the first argument. If no error occurred, the first argument should be null. If you ... ... <看更多>