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ssh2 host access .) s.setDuration(length) In Ruby, the attributes of an object can be accessed as if they were any other variable. We've seen this above with phrases such as aSong.name.
ssh2 host access So, it seems natural to be able to assign to these variables when you want to set the value of an attribute. In keeping with the Principle of Least Surprise, that's just what you do in Ruby. class Song def duration=(newDuration) @duration = newDuration end end aSong = Song.new("Bicylops", "Fleck", 260) aSong.duration » 260 aSong.
ssh2 host access duration = 257 # set attribute with updated value aSong.duration » 257 The assignment ``aSong.duration = 257'' invokes the method duration= in the aSong object, passing it 257 as an argument. In fact, defining a method name ending in an equals sign makes that name eligible to appear on the left-hand side of an assignment. Again, Ruby provides a shortcut for creating these simple attribute setting methods.
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