1 // Copyright 2014 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // See: http://code.google.com/p/v8/issues/detail?id=3501 6 7 "use strict"; 8 let lift = f => (x, k) => k (f (x)); 9 lift(isNaN); 10