javascript 設計模式1 單例模式

原創 zha_zi 2020-02-21 03:36

                                  單例模式

       做過幾年開發的肯定了解或者多少會用到設計模式，在強類型語言中例如java c++ 中因爲有抽象，繼承，實現，接口等關鍵字，所以實現一些模式是相對比較容易的，如果在使用javascript 的時候你會發現你在java中的使用的設計模式這裏幾乎都不可能實現。這裏我嘗試講述一些在javascript 中如何實現常用的一些設計模式。

     單例模式

        最常見的一種對象創建模式的一種，很對情況下某個類只允許有一個對象存在，如果在java中這種實現是及其簡單的，私有化構造器，然後一般都是通過一個靜態方法getInstance 這種方式

 

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