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                >[success] ## 檢測某個類型是否為數組兩種方式 ~~~ 1.第一'instanceof' 運算符用于測試構造函數的prototype屬性是否出現 ,在對象的原型鏈中的任何位置 2.使用'isArray' 判斷該對象是否為數組 ~~~ >[danger] ##### instanceof 用法案例 ~~~ var array = ['wang','wang2'] console.log(array instanceof Array) // true ~~~ >[danger] ##### isArray用法案例 ~~~ var array = ['wang','wang2'] console.log(Array.isArray(array)) // true ~~~
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