Why I Like Perl

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Advanced Programming - References

• like pointers, much safer
• 'this value actually points to this other container'
• references are scalars
  • can be stored in anything that stores a scalar
  • value in a hash
  • item in an array
• allow for rich data structures
  • hash of hashes
  • array of arrays
  • array of hashes
  • hash of arrays
  • hash of subroutines...

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Slide 38 of 47