better slicedToArray helper

This commit is contained in:
Sebastian McKenzie 2015-02-13 20:38:28 +11:00
parent ba9b85f64b
commit c6ce1a248c

View File

@ -1,14 +1,14 @@
(function (arr, i) {
if (!arr || !arr[Symbol.iterator]) {
throw new TypeError("Invalid attempt to destructure non-iterable instance");
} else if (Array.isArray(arr)) {
if (Array.isArray(arr)) {
return arr;
} else {
} else if (Symbol.iterator in arr) {
var _arr = [];
for (var _iterator = arr[Symbol.iterator](), _step; !(_step = _iterator.next()).done;) {
_arr.push(_step.value);
if (i && _arr.length === i) break;
}
return _arr;
} else {
throw new TypeError("Invalid attempt to destructure non-iterable instance");
}
});