You want to create a method full_name that takes two arguments first and last and returns the full name as a single string separated by a space. Which code correctly does this?

hard📝 Application Q8 of 15

Ruby - Methods

You want to create a method full_name that takes two arguments first and last and returns the full name as a single string separated by a space. Which code correctly does this?

Adef full_name(first, last) first + " " + last end

Bdef full_name(first, last) first & last end

Cdef full_name(first, last) first, last end

Ddef full_name(first, last) "#{first}#{last}" end

Step-by-Step Solution

Solution:

Step 1: Understand string concatenation
To join two strings with a space, use first + " " + last.
Step 2: Evaluate each option
def full_name(first, last) first + " " + last end correctly concatenates with space. def full_name(first, last) first & last end uses & which is invalid for strings. def full_name(first, last) first, last end returns a comma-separated list, not a string. def full_name(first, last) "#{first}#{last}" end concatenates without space.
Final Answer:
def full_name(first, last) first + " " + last end -> Option A
Quick Check:
Use + and " " to join strings with space [OK]

Quick Trick: Use + " " + to join strings with space [OK]

Common Mistakes:

MISTAKES

Using & instead of +
Returning multiple values instead of string
Forgetting space between names

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You want to create a method full_name that takes two arguments first and last and returns the full name as a single string separated by a space. Which code correctly does this?

Step 1: Understand string concatenation

Step 2: Evaluate each option

Final Answer:

Quick Check:

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