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The Op Dispatcher

A easy Python interview practice problem on DataDriven. Write and execute real python code with instant grading.

Domain
Python
Difficulty
easy
Seniority
mid, senior

Problem

Write a function that takes a list of dicts and an operation name string. Apply the named op to the 'value' field of each dict and return a new list with a 'result' key added. Support: 'double' (x*2), 'square' (x**2), 'abs' (absolute value), 'upper' (str uppercase), 'lower' (str lowercase).

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