[Solved] Find the mistake in this Ruby code snippet:sum = ->(a, b, c) { a + b + c } curried_sum = sum.curry partial = curried_sum.call(1, 2) puts partial.call() | Ruby

Ruby - Functional Patterns in Ruby

Find the mistake in this Ruby code snippet:

sum = ->(a, b, c) { a + b + c }
curried_sum = sum.curry
partial = curried_sum.call(1, 2)
puts partial.call()

Acurried_sum.call(1, 2) returns a number, not a lambda

BCalling partial.call() without argument causes error

Csum lambda has wrong number of parameters

Dcurry method is not defined for lambdas

Step-by-Step Solution

Solution:

Step 1: Analyze partial application
Calling curried_sum.call(1, 2) returns a new lambda waiting for the last argument.
Step 2: Check the final call
Calling partial.call() without argument causes an error because one argument is missing.
Final Answer:
Calling partial.call() without argument causes error -> Option B
Quick Check:
Missing arguments cause error on call [OK]

Quick Trick: Partial calls must supply all remaining arguments [OK]

Common Mistakes:

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