ruby - Is there special variable represent array itself in a each block for Enumerable? -

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i have code this:

array = [100, 90, 120, 100, 110] array.each_with_index.map |v, i|     next if == array.size - 1     array[i+1] - v end

and thought nicer if can write this:

array = [100, 90, 120, 100, 110] array.each_with_index.map |v, i|     next if == _.size - 1     _[i+1] - v end

so want know if there special variable represent array in enumerator block.

does know that?

ruby has block scope, meaning, new variable define inside do/end block in scope , not accessible anywhere else. in irb, _ has special meaning, value of last expression executed. isn't case when executing ruby program, however. can define temporary _ variable inside block hold reference array:

arr = [1,2,3] arr.each |x|   _ = arr   p _ #=> print [1,2,3] 3 times end  p _ #=> undefined local variable

other that, i'd consider monkey-patching array that's risky operation. of times questions these, however, if give better context of you're trying achieve, there's simpler solution hacks these.


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