| // Copyright (C) 2016 The V8 Project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| esid: sec-number.prototype.toexponential |
| description: > |
| Return "NaN" if this is NaN |
| info: | |
| Number.prototype.toExponential ( fractionDigits ) |
| |
| 1. Let x be ? thisNumberValue(this value). |
| 2. Let f be ? ToInteger(fractionDigits). |
| 3. Assert: f is 0, when fractionDigits is undefined. |
| 4. If x is NaN, return the String "NaN". |
| [...] |
| ---*/ |
| |
| assert.sameValue(NaN.toExponential(Infinity), "NaN", "NaN value"); |
| |
| var n = new Number(NaN); |
| assert.sameValue(n.toExponential(NaN), "NaN", "NaN obj"); |
