| This test checks whether various forms of preincrement expression are allowed. |
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| On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". |
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| PASS ++x is 1 |
| PASS ++window.x is 2 |
| PASS ++window["x"] is 3 |
| PASS ++(x) is 4 |
| PASS ++(window.x) is 5 |
| PASS ++(window["x"]) is 6 |
| PASS (y, ++x) is 7 |
| PASS ++((x)) is 8 |
| PASS ++((window.x)) is 9 |
| PASS ++((window["x"])) is 10 |
| PASS ++(y, x) threw exception SyntaxError: Prefix ++ operator applied to value that is not a reference.. |
| PASS ++(true ? x : y) threw exception SyntaxError: Prefix ++ operator applied to value that is not a reference.. |
| PASS ++++x threw exception SyntaxError: The prefix-increment operator requires a reference expression.. |
| PASS successfullyParsed is true |
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| TEST COMPLETE |
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