| // Copyright 2009 the Sputnik authors. All rights reserved. | |
| // This code is governed by the BSD license found in the LICENSE file. | |
| /*--- | |
| esid: sec-typeof-operator-runtime-semantics-evaluation | |
| description: If IsUnresolvableReference(val) is true, return "undefined". | |
| info: | | |
| The typeof Operator | |
| Runtime Semantics: Evaluation | |
| ... | |
| If Type(val) is Reference, then | |
| If IsUnresolvableReference(val) is true, return "undefined". | |
| ... | |
| ---*/ | |
| assert.sameValue( | |
| typeof x, | |
| "undefined", | |
| "typeof x === 'undefined'" | |
| ); |