Array Operations Function | Dataford Interview Questions

Write a function to perform basic operations on an array.

Implement array_operations(arr, operation, value=None, index=None). Return a new array for append, insert, delete, and reverse; return the first matching index for search, or -1 if absent. Examples: ([1, 2], "append", 3) returns [1, 2, 3]; ([4, 5, 4], "search", 4) returns 0. Assume valid operation names and indices, with array length from 0 to 10^4.

Constraints

0 <= len(arr) <= 10^4
Array elements are integers
operation is one of: "append", "insert", "delete", "search", or "reverse"
value is provided for append and search, and index is provided for insert and delete
Indices are valid for the requested operation

Function Signature

def array_operations(arr, operation, value=None, index=None):

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Problem

Write a function to perform basic operations on an array.

Constraints

0 <= len(arr) <= 10^4
Array elements are integers
operation is one of: "append", "insert", "delete", "search", or "reverse"
value is provided for append and search, and index is provided for insert and delete
Indices are valid for the requested operation

Function Signature

def array_operations(arr, operation, value=None, index=None):

Your question is Array Operations Function. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.