JS回調函數--簡單易懂有實例

版權聲明：本文爲博主原創文章，轉載請註明出處html   　　初學js的時候，被回調函數搞得很暈，如今回過頭來總結一下什麼是回調函數。ajax 　　咱們先來看看回調的英文定義：A callback is a function that is passed as an argument to another function and is executed after its parent func

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