Explain the unification of arrays and objects in JavaScript. Explain how tuples and hashes can be used to emulate multidimensional arrays in Python. Explain the concept of context in Perl. How is it...

Explain the unification of arrays and objects in JavaScript. Explain how tuples and hashes can be used to emulate multidimensional arrays in Python. Explain the concept of context in Perl. How is it related to type compatibility and type inference? What are the two principal contexts defined by the language’s operators?