move some arguments.length access from loops

Author: zloirock

packages/core-js/internals/task.js

@@ -49,8 +49,9 @@ var post = function (id) {
 if (!set || !clear) {
   set = function setImmediate(fn) {
     var args = [];
+    var argumentsLength = arguments.length;
     var i = 1;
-    while (arguments.length > i) args.push(arguments[i++]);
+    while (argumentsLength > i) args.push(arguments[i++]);
     queue[++counter] = function () {
       // eslint-disable-next-line no-new-func -- spec requirement
       (typeof fn == 'function' ? fn : Function(fn)).apply(undefined, args);

packages/core-js/modules/esnext.map.merge.js

@@ -12,8 +12,9 @@ $({ target: 'Map', proto: true, real: true, forced: IS_PURE }, {
   merge: function merge(iterable /* ...iterbles */) {
     var map = anObject(this);
     var setter = aFunction(map.set);
+    var argumentsLength = arguments.length;
     var i = 0;
-    while (i < arguments.length) {
+    while (i < argumentsLength) {
       iterate(arguments[i++], setter, { that: map, AS_ENTRIES: true });
     }
     return map;