Accessing global variable from a function

ruby-talk
1

I'd like to access a global variable from within a function, without
passing it as paramater. How do I do it? e.g

def func
    puts i
end

i = 5
func

In PHP, for example, I could use the "global" keyword in the function.

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2

Vitaly Belman wrote:

I'd like to access a global variable from within a function, without
passing it as paramater. How do I do it? e.g

You want to use a global variable, like so:

def func
  puts $i
end

$i = 5
func

The "$" tells Ruby it's global.

In PHP, for example, I could use the "global" keyword in the function.

Yeah... one of the most distracting "features" of PHP *shrugs*.

Sebastian

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It was mentioned on CNN that the new prime number discovered recently is
four times bigger than the previous record.
  ~ John Blasik

3

Vitaly Belman wrote:

I'd like to access a global variable from within a function, without
passing it as paramater. How do I do it?

Global variables start with a "$" so just write

def func
    puts $i
end

$i = 5
func

···

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