March 2012
Intermediate to advanced
244 pages
4h 42m
Chinese
Content preview from JavaScript 設計模式
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114
第五章
試試看這份實作：
鏈接模式
鏈接模式（chaining pattern）允許你讓物件一個接著一個呼叫多個方法，既不需要將前一
次的操作結果賦值給變數，也不需要將你的呼叫拆成多行：
[110]
當你要建立的方法不具有意義的回傳值時，你可以讓他們回傳
this
，也就是方法所運作
的物件實體，這樣就可以讓物件的使用者串連著直接呼叫下一個方法：
檢查是否定義過
定義常數
再檢查一遍
嘗試重新定義
值是否原封不動呢？
鏈接這些方法呼叫
相對的，逐一呼叫它們
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.