[1..5] 1 2 3 4 5 ----- [0..0] 0 ----- [-4..-5] -4 -5 ----- [ 1 .. 5 ] 1 2 3 4 5 ----- [5..1] 5 4 3 2 1 ----- [-5..5] -5 -4 -3 -2 -1 0 1 2 3 4 5 ----- [5..-5] 5 4 3 2 1 0 -1 -2 -3 -4 -5 ----- refs $a=1 $b=5 [$a..$b] 1 2 3 4 5 ----- [$a.. 7] 1 2 3 4 5 6 7 ----- [-7 ..$a] -7 -6 -5 -4 -3 -2 -1 0 1 ----- [ -7 ..$a] -7 -6 -5 -4 -3 -2 -1 0 1 ------ setting in $foo -> [0..5] : 0 1 2 3 4 5 ---- Now some use-case examples. Suppose we want a table to have 10 rows
a
b
c
 
 
 
 
 
 
 
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