| // Copyright (c) 2017 Valerie Young. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| esid: sec-string.prototype.trimStart |
| description: Behavoir when "this" value is a number. |
| info: | |
| Runtime Semantics: TrimString ( string, where ) |
| 2. Let S be ? ToString(str). |
| |
| ToString ( argument ) |
| Argument Type: Number |
| Result: NumberToString(argument) |
| features: [string-trimming, String.prototype.trimStart] |
| ---*/ |
| |
| var trimStart = String.prototype.trimStart |
| |
| assert.sameValue( |
| trimStart.call(NaN), |
| 'NaN', |
| 'String.prototype.trimStart.call(NaN)' |
| ); |
| |
| assert.sameValue( |
| trimStart.call(Infinity), |
| 'Infinity', |
| 'String.prototype.trimStart.call(Infinity)' |
| ); |
| |
| assert.sameValue( |
| trimStart.call(-0), |
| '0', |
| 'String.prototype.trimStart.call(-0)' |
| ); |
| |
| assert.sameValue( |
| trimStart.call(1), |
| '1', |
| 'String.prototype.trimStart.call(1)' |
| ); |
| |
| assert.sameValue( |
| trimStart.call(-1), |
| '-1', |
| 'String.prototype.trimStart.call(-1)' |
| ); |