Array Boundaries

MediumFoundationsPRO

Practice JavaScript array boundary reads by writing a reusable helper that derives the first and last positions from whatever input it receives. This medium exercise focuses on deriving positions from the input array so single-item lists still behave consistently.

What you'll practice

Work with JavaScript array boundary reads by writing a reusable helper that derives the first and last positions from whatever input it receives
Deriving positions from the input array so single-item lists still behave consistently

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