| 15.4.4.21-10-1 (TestCases/chapter15/15.4/15.4.4/15.4.4.21/15.4.4.21-10-1.js) Array.prototype.reduce doesn't mutate the Array on which it is called on | |
| On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". | |
| PASS ES5Harness.preconditionPassed is true | |
| PASS ES5Harness.testPassed is true | |
| PASS successfullyParsed is true | |
| TEST COMPLETE | |