+var Uint16Array = global.Uint16Array;
+var un$Sort = Uint16Array && uncurryThis(Uint16Array.prototype.sort);
+
+// WebKit
+var ACCEPT_INCORRECT_ARGUMENTS = !!un$Sort && !(fails(function () {
+ un$Sort(new Uint16Array(2), null);
+}) && fails(function () {
+ un$Sort(new Uint16Array(2), {});
+}));
+
+var STABLE_SORT = !!un$Sort && !fails(function () {
+ // feature detection can be too slow, so check engines versions
+ if (V8) return V8 < 74;
+ if (FF) return FF < 67;
+ if (IE_OR_EDGE) return true;
+ if (WEBKIT) return WEBKIT < 602;
+
+ var array = new Uint16Array(516);
+ var expected = Array(516);
+ var index, mod;
+
+ for (index = 0; index < 516; index++) {
+ mod = index % 4;
+ array[index] = 515 - index;
+ expected[index] = index - 2 * mod + 3;
+ }
+
+ un$Sort(array, function (a, b) {
+ return (a / 4 | 0) - (b / 4 | 0);
+ });
+
+ for (index = 0; index < 516; index++) {
+ if (array[index] !== expected[index]) return true;
+ }
+});
+
+var getSortCompare = function (comparefn) {
+ return function (x, y) {
+ if (comparefn !== undefined) return +comparefn(x, y) || 0;
+ // eslint-disable-next-line no-self-compare -- NaN check
+ if (y !== y) return -1;
+ // eslint-disable-next-line no-self-compare -- NaN check
+ if (x !== x) return 1;
+ if (x === 0 && y === 0) return 1 / x > 0 && 1 / y < 0 ? 1 : -1;
+ return x > y;
+ };
+};