Dynamic LanguagesLanguage Popularity IndexExercises

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Exercises

  1. Can you extend the Ruby Array class to add similar support as in R to construct a continuous number sequence and to index through an array?
  2. Compare the supported operations for arrays in other languages.
  3. An array may be large, so it is useful to have a search method. In Ruby, we inquire whether an array supports a method such as grep. Let's take a leap of faith and try grep on the method array. Running Array.public_methods.grep "grep" you will find the answer is no. The returned array is empty. But this seems contradictory. Haven't we just used grep on an array?

August 29, 2012

Dynamic LanguagesLanguage Popularity IndexExercises

Contents

Index