When I run this exercise:
def counter(start)
->(start) { start++ }
end
count = counter 0
(1…10).each do |i|
puts “#{count.call(i)}\n”
end
… I get this error:
ex1.rb:2: syntax error, unexpected ‘}’
ex1.rb:8: syntax error, unexpected end-of-input, expecting ‘}’
??
gvim
gvim
2
On Jan 13, 2014, at 11:43 AM, gvim [email protected] wrote:
When I run this exercise:
def counter(start)
->(start) { start++ }
end
There is no prefix or postfix increment operators in ruby.
Try it with:
start += 1
Regards,
Ammar
gvim
3
#closure for gvimrc | tr -d ‘g’
def make_counter( n) lambda { n += 1} end
first = make_counter 2
second = make_counter 42
first.()
3
second.()
43
second.()
44
first.()
4
(not (eq? p np))
lulz =)