| // Copyright (C) 2015 the V8 project authors. All rights reserved. | |
| // This code is governed by the BSD license found in the LICENSE file. | |
| /*--- | |
| es6id: 21.1.3.18 | |
| description: > | |
| Throws TypeError when `this` is undefined | |
| info: | | |
| 21.1.3.18 String.prototype.startsWith ( searchString [ , position ] ) | |
| 1. Let O be RequireObjectCoercible(this value). | |
| 2. Let S be ToString(O). | |
| ---*/ | |
| assert.throws(TypeError, function() { | |
| String.prototype.startsWith.call(undefined, ''); | |
| }); |