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Marc Georges
1,685 PointsI know that append takes exactly one argument. So what is the difference between an argument and parameter?
idk
3 Answers

Jason Anders
Treehouse Moderator 145,624 PointsHey Marc,
In short, a parameter is what a method accepts (or is expecting), and an argument is what is passed into the method when it is called.
:)

Alexander Davison
65,454 PointsYou call it a parameter when inside the function and an argument when outside the function.

Allison Schaaf
33,298 PointsAlso, parameter is a variable and argument is the value you assign to the variable.