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Need help with this textbook problem Write a simple JavaScript function named makeFullName with two parameters...

Need help with this textbook problem

Write a simple JavaScript function named makeFullName with two parameters named givenName and familyName. The function should return a string that contains the family name, a comma, and the given name. For example, if the function were called like this:

var fn = makeFullName("Theodore", "Roosevelt");

it would return "Roosevelt, Theodore" without the double quotes.

Test Cases
Parameters Return
givenName familyName
"Theodore" "Roosevelt" "Roosevelt, Theodore"
"Barak" "Obama" "Obama, Barak"
"Donald" "Trump" "Trump, Donald"
engineering   Computer-Science   
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Answer #1 
Answer :
function makeFullName(givenName, familyName)
{
    return givenName+", "+familyName;
}
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