This one is short, but not necessarily sweet. It’s a reminder to me that parameters and arguments are not interchangeable terms and do have specific meaning. I always forget the correct definitions.
Parameters are the variables defined in a function’s declaration or signature. They act as placeholders that specify what kind of data the function expects to receive.
Arguments are the actual values you pass to a function when you call it. These are the concrete data that gets assigned to the parameters.
You can think of parameters as empty slots in a template, while arguments are the specific content you fill those slots with. When you call a function, the arguments get matched up with the corresponding parameters.
The terms are often used interchangeably in casual conversation, but technically parameters exist at definition time while arguments exist at call time.