Scratch

So I was writing a Wiki article on casting, and while researching how lists are cast, found out some awesome stuff I though I should share with the advanced community to see how they feel.

It turns out the Scratch team apparently put a lot of thought into the casting rules, as they are simple and make a lot of sense.

If you forgot what casting is, look at the Wiki article I was making: wiki.scratch.mit.edu/wiki/Casting 

Casting to strings
• If all items of the list are one character long, the characters are concatenated
[a, b, c] => "abc"
• If one or more of the items have many letters, they are concatenaed with a space in between:
[a, cool, article] => "a cool article"

Casting to numbers
This bit is even more interesting:
•Empty list casts to 0:
[] => 0
•A list full of single digits and up to 1 decimal point are concatenated to a number:
[3, ., 1, 4] => 3.14
•A list with one or more multicharacter items is cast to 0 if the first item is a string or non-digit character, or the first item if not:
[12, hi] => 12
[hi, there] => 0

Last edited by Hardmath123 (2012-03-30 06:55:53)