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Usman Shahid
13,554 Points'list' inside the function parameter holds an array 'playList'. But how and where?
Inside the 'function' Dave explains:
function printList ( 'list') { ... }
'list' is holding array value. How it is doing that?
2 Answers
Valeshan Naidoo
27,008 PointsThe function takes one argument, which is 'list'. 'list' is basically like a placeholder. Within the function, there is a for statement that loops through the list and appends it to the ol element.
After the function is written, David calls the function and puts in the variable playList as the argument, so it goes through what the 'list' argument in the function would go through. Therefore the function will loop through the contents of the playList and add them into an ol element.
Dean Pajevic
1,964 PointsSuper helpful explanation because the placeholder idea is confusing as it is abstract, not tied to a specific value in the code. Thank you for making this clear.
Usman Shahid
13,554 PointsUsman Shahid
13,554 PointsNow I get it. This means I could have any array and whenever I pass an array to the function printList, it will print it.
Thank you for clearing the concept.