304: Mainline

Now, you can define the powerOfTwo method using a timesRepeat: message instead of a whileTrue: or whileFalse: message:

Integer method definition • instance 
powerOfTwo 
  | result | 
  result := 1. 
  self timesRepeat: [result := result * 2]. 
  ^ result 
Workspace
Transcript show: 4 powerOfTwo printString 
Transcript 
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