In the above example I have an array on the LHS and an array on the RHS. This is equivalent to:
Strictly speaking... this not true. You have a list on the LHS, as per perlfaq4: What is the difference between a list and an array:
A list is a fixed collection of scalars. An array is a variable that holds a variable collection of scalars. An array can supply its collection for list operations, so list operations also work on arrays
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Array operations, which change the scalars, rearranges them, or adds or subtracts some scalars, only work on arrays. These can't work on a list, which is fixed. Array operations include shift, unshift, push, pop, and splice.
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