Python Coding Challenge - Question with Answer (ID -271125)

 

✅ Step-by-Step Explanation

🔹 1. This is your list:

nums = [0, 1, 2, 3, 4]

It contains both falsy and truthy values.

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🔹 2. This is the filter with lambda:

result = filter(lambda x: x, nums)

• lambda x: x means:
  👉 Return the value itself.

• filter() keeps only values that are truthy.

• In Python, these are falsy values:

  • 0, None, False, ""

So 0 is removed, and all non-zero numbers remain.

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🔹 3. Convert result to list:

print(list(result))

Since filter() returns an iterator, we convert it to a list to display it.

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✅ FINAL OUTPUT

[1, 2, 3, 4]

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 Key Concept

👉 This line:

filter(lambda x: x, nums)

means:

“Keep only the values that are True in a boolean sense.”

APPLICATION OF PYTHON IN FINANCE