The interesting thing about reduce is that it can change the shape of the return value. In this sandwich example the cook could go out and trade the ingredients for a sushi and give you that. The responsability is on the cook (the reducer function).
So i guess that you can think of reduce like a restaurant where you have to bring the ingredients and the chef if you want to eat something. While preparing the food you pass each ingredient one by one to the chef, they do their thing and in the end hopefully you get a meal.
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re: Explain REDUCE Like I'm Five VIEW POST
FULL DISCUSSIONMaybe an image can help.
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The interesting thing about reduce is that it can change the shape of the return value. In this sandwich example the cook could go out and trade the ingredients for a sushi and give you that. The responsability is on the cook (the reducer function).
So i guess that you can think of reduce like a restaurant where you have to bring the ingredients and the chef if you want to eat something. While preparing the food you pass each ingredient one by one to the chef, they do their thing and in the end hopefully you get a meal.
This is awesome!