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Pablo Caro
4,191 PointsHelp me understand the way this function is written
Im curious as to why the "numberOfRowsInSection" his then followed by section just with a space. Are they two arguments for the function? why isn't there a comma separating them?
code:
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return objects.count
}
2 Answers
Steven Deutsch
21,046 PointsHey Pablo Caro,
Parameters can have an external name and a local name in Swift. The local name is for use inside of the function body. The external name is used for the function call. In this case, numberOfRowsInSection is the external name of this function. Therefore, when you call this function, you will use numberOfRowsInSection as the argument name instead of section. You have actually been using external argument names all this time without realizing it. This is because if you do not explicitly specify an external parameter name, Swift will use the local name as the external name, by default.
Hope this helps! Good Luck!
Pablo Caro
4,191 PointsAh yes! I got confused because they have different names...I guess I am still a newbie and hadn't noticed that before! Thanks!!