[Solved] Given this custom serializer field code, what will be the output for input value 10?... Given this custom serializer field code, what will be the output for input value 10? | Django

Django - DRF Advanced Features

Given this custom serializer field code, what will be the output for input value 10?

class DoubleField(serializers.Field):
    def to_representation(self, value):
        return value * 2

field = DoubleField()
print(field.to_representation(10))

A20

B'10'

C10

DError

Step-by-Step Solution

Solution:

Step 1: Analyze to_representation method
The method multiplies the input value by 2 before returning it.
Step 2: Calculate output for input 10
10 * 2 = 20, so the output is 20.
Final Answer:
20 -> Option A
Quick Check:
10 doubled = 20 [OK]

Quick Trick: to_representation transforms output value [OK]

Common Mistakes:

MISTAKES

Expecting input unchanged
Confusing output type as string
Assuming method raises error

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Given this custom serializer field code, what will be the output for input value 10?

Step 1: Analyze to_representation method

Step 2: Calculate output for input 10

Final Answer:

Quick Check:

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