S9.2_A4_T2.js (723B)
1 // Copyright 2009 the Sputnik authors. All rights reserved. 2 // This code is governed by the BSD license found in the LICENSE file. 3 4 /*--- 5 info: | 6 Result of boolean conversion from number value is false if the argument 7 is +0, -0, or NaN; otherwise, is true 8 es5id: 9.2_A4_T2 9 description: +0, -0 and NaN convert to Boolean by implicit transformation 10 ---*/ 11 12 // CHECK#1 13 if (!(+0) !== true) { 14 throw new Test262Error('#1: !(+0) === true. Actual: ' + (!(+0))); 15 } 16 17 // CHECK#2 18 if (!(-0) !== true) { 19 throw new Test262Error('#2: !(-0) === true. Actual: ' + (!(-0))); 20 } 21 22 // CHECK#3 23 if (!(Number.NaN) !== true) { 24 throw new Test262Error('#3: !(Number.NaN) === true. Actual: ' + (!(Number.NaN))); 25 } 26 27 reportCompare(0, 0);