They're different operators. => is the same thing as the comma. It's sole
difference is readability.
That's the reason we use it, but it's not the only difference. See below.
For example
%hash = ( key => "value", key2 => "value2", ); #is the same as %hash = ( key, "value", key2,"value2", );
Not quite. You have to quote key and key2 in the second hash. That leads us to the advantage of =>. It automatically quotes the left operand, if it looks like a simple hash key. Handy, eh?
James
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