This test checks whether various forms of delete expression are allowed. On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". PASS delete x is true PASS delete window.x is true PASS delete window["x"] is true PASS delete (x) is true PASS delete (window.x) is true PASS delete (window["x"]) is true PASS (y, delete x) is true PASS delete ((x)) is true PASS delete ((window.x)) is true PASS delete ((window["x"])) is true PASS delete (y, x) is true PASS delete (true ? x : y) is true PASS delete nonexistent is true PASS delete window.nonexistent is true PASS delete window["nonexistent"] is true PASS delete (nonexistent) is true PASS delete (window.nonexistent) is true PASS delete (window["nonexistent"]) is true PASS delete "x" is true PASS delete (2 + 3) is true PASS successfullyParsed is true TEST COMPLETE