There are 3 sorts of data types

  • Scalar :- Scalars could be a string, a number a simple variable or a reference. A dollar sign ($) is the scalar precedent.
  • Arrays :- It’s an ordered list of scalars, which is accessible by numeric index as it is an index, so it's supposed to start with zero (0). @ is the preceded sign for arrays.
  • Hashes :- Hashes are unordered sets of key or value that would be accessible by using the key as subscripts. A percentile (%) sign is the precedent.

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