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Functions & basics

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Functions & basics easy

How to Merge Lists in Python with Default Parameters

This Python function merges two lists using the + operator and demonstrates default parameters, allowing the second argument to be omitted.

functions default-parameters list
Python 
def merge_lists(list1, list2=["default"]):
    """Merge two lists and return the combined result."""
    return list1 + list2


if __name__ == "__main__":
    # Example with default parameter
    print("With default:", merge_lists([1, 2, 3]))
    
    # Example with both arguments provided
    print("With custom:", me…
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