How to declare an array parameter in Rails 3?

Question

guys. I tried this code:

 def trap_check(payroll[][], timelive[][])
 .
 .
 .
 end

I was trying to create a function that accepts 2-dimensional array as parameters. I was having this error:

 syntax error, unexpected '[', expecting ')'
    def trap_check(payroll[][], timelive[][])

Can somebody pls tell me how to do it the right way??? Pls help...

Mike Lewis · Accepted Answer · 2011-03-17 04:08:02Z

2

In Ruby you don't declare types, so your function would just be:

def trap_check(payroll, timelive)
# code
end

And you might call it as such

trap_check([[1,2,3,4],[5,6]], [[1,1,1,1],[2,2,2,2]])

To verify if payroll is infact an array, you can just do:

payroll.is_a?(Array) #=> returns true or false

answered Mar 17, 2011 at 4:08

Mike Lewis

64.4k20 gold badges144 silver badges111 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

One more question, how am I gonna access the row length of the parameter.