actionscript 3 - Finding the next element in an unordered array -


i have unordered array of can not sort. not because can't, because order critical application. not knowing index of element have, how find element following it?

what have devised far:

/** * @return int - id || -1 out of bounds */ public function getnextid(currentid:int):int{     var found:boolean = false;     each(var id:int in mids){         if(found){             return id;         }         if(id == currentid){             found = true;         }     }return -1; }

i merely asking because seeking better solution possibly doesn't call loop , interested in educating myself better on options available in as3.

thanks!

try this:

public function getnextid(currentid:int):int {     var index:int = mids.indexof(currentid);     if (index == -1 || index + 1 >= mids.length) return -1;     return mids[index + 1]; }

the indexof function gets first index in array corresponds search parameter. if doesn't exist, returns -1. can use in conjunction array index accessor syntax (using brackets []) find right value.


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