Watch the vertical helplines in the editor. pine coding is position sensitive - its important for the compiler at which position from left the coding starts, which will define if its a local block (on the line) or continuation (between the lines). I was confused a lot of times in the pine script beginning as well coming from other environments where that didnt even matter and was just for readability.

consider for ... in .. to loooooooop through the array.

hope this helps