Generate a random number without consuming a rand

rand_look  max (number_or_range)

Given a max number, produces a number between 0 and the supplied max value exclusively. If max is a range produces an int within the range. With no args returns a value between 0 and 1.

Does not consume a random value from the stream. Therefore, multiple sequential calls to rand_look will all return the same value.

Introduced in v2.11

Examples

print rand_look(0.5)

#=> will print a number like 0.375030517578125 to the output pane

print rand_look(0.5)
  print rand_look(0.5)
  print rand_look(0.5)
  print rand(0.5)
  print rand_look(0.5)

#=> will print a number like 0.375030517578125 to the output pane
#=> will print the same number again
#=> will print the same number again
#=> will print a different random number
#=> will print the same number as the previous line again.