findLastIndex.js
517 Bytes
define(['../function/makeIterator_'], function (makeIterator) {
/**
* Returns the index of the last item that matches criteria
*/
function findLastIndex(arr, iterator, thisObj){
iterator = makeIterator(iterator, thisObj);
if (arr == null) {
return -1;
}
var n = arr.length;
while (--n >= 0) {
if (iterator(arr[n], n, arr)) {
return n;
}
}
return -1;
}
return findLastIndex;
});