function f(x) { | |
for (var i=0; i<50; i++) { | |
assertEq(x == null, false); | |
assertEq(x == undefined, false); | |
assertEq(x != null, true); | |
assertEq(x != undefined, true); | |
assertEq(x === null, false); | |
assertEq(x === undefined, false); | |
assertEq(x !== null, true); | |
assertEq(x !== undefined, true); | |
assertEq(x < null, false); | |
assertEq(x >= null, true); | |
} | |
} | |
f(10); | |
f(0); |