function arrLastIndexOf(arr:Array, object:Object):Number {
 for(var i:Number = arr.length - 1; i >= 0; i--) {
  if(arr[i] == object) {
   return i;
  }
 }
 return null;
}


var arr:Array = new Array("a", "b", "c", "a", "b", "c");
trace(arrLastIndexOf(arr, "a")); //outputs 3
trace(arrLastIndexOf(arr, "c")); //outputs 5

as3

1

Array Last Index Of

function arrLastIndexOf(arr:Array, object:Object):Number {
 for(var i:Number = arr.length - 1; i >= 0; i--) {
  if(arr[i] == object) {
   return i;
  }
 }
 return null;
}


var arr:Array = new Array("a", "b", "c", "a", "b", "c");
trace(arrLastIndexOf(arr, "a")); //outputs 3
trace(arrLastIndexOf(arr, "c")); //outputs 5

copy | embed

• array, 
• as3, 
• flash, 
• index