My favourite part of the book "Clean Code" so far is the chapter where he advocates that functions ideally have zero arguments and then advocates that functions ideally do not have side effectspic.twitter.com/ylRTNSbWwy
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So, what the author means by "functions" is "methods". With a method, there's always one implicit "argument", `this`, the object on which the method is being called. What he's actually asserting is that the ideal method only interacts with `this`
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Additionally, he doesn't consider it to be a side-effect when a method call interacts with `this` (sets member variables, for example)
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So, for example, instead of one method passing a Boolean flag `isSuite` into an inner method call, he sets `this.isSuite = isSuite` in the first method and then reads from `this.isSuite` in the inner method
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As we see here: https://github.com/ludwiggj/CleanCode/blob/master/src/clean/code/chapter03/SetupTeardownIncluder.java#L28-L33 …
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This is something that I've always felt was wrong in the back of my head about this book but never been able to consciously verbalize - thanks!
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i.... i dont even i guess some author flunked their compsci education
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To be pedantic, 'this' is a parameter
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woooooow
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