Return

function with param

function with return

return

1 POSIX Shell

_sum() {
	return `expr $1 + $2`
}

_sum 1 2
echo $?
# 3

2 PHP

function sum(a, b) {
	return(a+b);
}
echo(sum(1, 2));
# 3

3 Python

def sum(a, b):
	return(a+b)
print(sum(1, 2))
# 3

4 Ruby

def sum(a, b)
	return a + b
end
puts sum(1, 2)
# 3

implicit return

def sum(a, b)
	a + b
end
puts sum(1, 2)
# 3

5 Perl

sub _sum {
	my ($_a, $_b) = @_;
	return $_a+$_b;
}

print _sum(1, 2) . "\n";
# 3

6 같이 보기

• function
• 종료 상태