The 's' replaces 1 Room match at a time nevertheless the 's+' replaces The entire Room sequence simultaneously with the second parameter.
In such a case, it can make no difference, since you are replacing all the things with the empty string (although It could be better to work with s+ from an performance standpoint). In the event you ended up changing which has a non-vacant string, The 2 would behave differently. Share Enhance this response Observe
so "indent" specifies simply how much Room to allocate to the string that follows it inside the parameter list.
This is particularly significant for customers of our Local community who're newcomers, and never aware of the syntax. Provided that, are you able to edit your solution to incorporate a proof of what you're doing and why you suspect it is the best method?
The explanation driving the code if I am using %s in place of %c in my printf section in the code eighty two
The main difference lies in the way in which it get's dealt with. In the event you would have a gaggle of (one example is) 3 spaces directly next one another s+ will take that team and turns The full it into a "", while s would proces each individual Place on its own.
And since your next parameter is vacant string "", there is no difference between the output of two circumstances.
Andrew HareAndrew Hare 351k7575 gold badges645645 silver badges641641 bronze badges 3 fifteen Notice that this kind of string interpolation is get more info deprecated in favor of the greater highly effective str.format method.
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For starters you have to know that remaining output of the two the statements are going to be identical i.e. to get rid of many of the spaces from presented string.
So the initial if statement translates to: in the event you haven't handed me an argument, I'll inform you how it is best to go me an argument Sooner or later, e.g. you'll see this on-screen: