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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                創建函數時,函數默認會有一些成員來表達自己的身份。可以通過`console.log(fun)`將函數的所有成員打印出來。 ```js function fn(x, y, z) { console.log(fn.length) // => 形參的個數 console.log(arguments) // 偽數組實參參數集合 console.log(arguments.callee === fn) // 函數本身 console.log(fn.caller) // 函數的調用者 console.log(fn.name) // => 函數的名字 } ```
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