Dec 18, 2006
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Some call it context, others call it reference data, but whatever it is, it's yours
Different functions call it different things. calls it . calls it reference data. calls it . just calls it a parameter! But whatever its name is, it means the same thing: It's a value the function doesn't care about. All the function does is hand that value back to you. What the value means is up to you. What if you need to pass more context ...