關於 functionality function ，我們在網路上蒐集到這些相關的討論、資訊與評價

#PERSONALJOURNEY❤️✨🌈☺️These few months have been a roller coaster for me #swipetoseebeforeandafter ✨I was really feeling down last year coz I realized I put on so much weight during the festive season. 😭 So I was really determined to make a change. “Sometimes the bravest thing you can do is to show up” 💪🏻💪🏻💪🏻
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I started taking @ksisters.sg #BNR17 Probiotics - which has Lactobacillus gasseri BNR17®, thats recognized for its body fat reducing functionality from the Korean Ministry of Food and Drug as the main ingredient. Most importantly it’s Dual function to reduce body fat and relieve irritable bowel syndrome! 🏋🏻‍♀️
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I also decided to make a change by working out regularly, (hello spin classes) and reducing my carb intake plus increasing my vegetable 🥒🥕🥦 portions especially at night - AND I CAN REALLY SEE THE DIFFERENCE ☺️ Can you?
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I’m so glad that I can see some of my hard work paying off, 4.8% reduction in #subcutaneousfat, oh my! 😱 .. But most importantly, I wanna work towards to healthier, happier me ✨✨✨ Cheers to making a change. 🥂 So now, will you excuse me while I go have a champagne, coz I deserve it (I guess) 😋 Not sure who needs to hear this : The hard days are what makes you stronger #youcandoit 🙌🏻
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#weightlossjourney #transformyourself

【code smell: Data Class】

獻給那些老吵著 Data Class 不可以有自己行為的朋友。

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其實也不能說他們錯，而是應該更進一步來說：為啥你需要有純粹的 Data Class。

Data Class 不可以有行為，那當它有行為時，我們就不要把它當 Data Class 看就好啦。

Simple Design 的第四條：The Fewest Elements。要完成同樣的事情，element 越少越好，而如果有純粹的 Data Class 存在，往往就會有對應的 helper 或 mode class 存在來操作這些資料，提供行為。

最終兩個 class 就會被合併起來，以減少不必要的 element，而那時 class 就會同時有資料、有行為。（這才叫做內聚跟物件啊）

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脈絡大致上是這樣：

有資料，就一定有人會用它。用它的人如果把資料攤開來用，往往就又會出現 primitive obsession 或 data clump 的壞味道。

如果不攤開來用，這時 Data Class 的存在就只是個載體，要用這些資料，就要透過別的物件才能使用它，讓它發揮存在的價值。

而如果是這樣，只操作資料的 Class 與只存放資料的 Class 往往就可以被合併，因為方法會出現 feature envy 壞味道。

自始至終躲不掉的。

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每個梯次總會有人說，我們公司/團隊 的 Data class 不可以有其他 function，但當我問為什麼？當我給個情境詢問，好處在哪？問題在哪？通常都得不到一個清楚的答案。

就像第 N 代以後的猴子，大家都不知道為什麼不能拿香蕉了。（哏：https://tainan.catholic.org.tw/at/47.htm）

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