Lambda issue while passing on method

Question

In my application has status array which is something like this

 status = ['success','failure','warning']

For example, lambda to process status array like this

 print_status = lambda { |stat| puts stat }

When I'm trying to pass lambda on status's each method, I got an error which says "ArugmentError: wrong number of arguments (1 for 0)"

 status.each(print_status)

any one help me to fix this issue.

geekdev · Accepted Answer · 2013-10-17 12:27:03Z

2

This issue happen due to block and proc mismatch. In your status each method expects block not proc. Ideal solution to convert proc to block is that "&"

 status.each(&print_status)

Hope this code may help you to solve your issue

answered Oct 17, 2013 at 12:27

geekdev

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3 Comments

hirolau Over a year ago

And if you do not want to convert it to a proc a slightly uglier syntax would be status.each{|stat|print_status.call(stat)}

main_ka Over a year ago

This is the solution, you save my time :), thanks Veerasekar. hirolau thanks for your suggestion.

geekdev Over a year ago

@main_ka Is it useful?

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