function reflexive(x) {
return x != x;
}
reflexive(NaN)
function transitive(x,y,z) {
return x && x == y && y == z && x != z;
}
transitive([], 0 , [])
function counter(f) {
var a = f(), b = f();
return a() == 1 && a() == 2 && a() == 3
&& b() == 1 && b() == 2;
}
counter((c = 1 ) => (() => c++))
function peano(x) {
return (x++ !== x) && (x++ === x);
}
peano(2**53-1)
function proto1(x) {
return x && !("__proto__" in x);
}
proto1(Object.create(null))
function symmetric(x,y) {
return x == y && y != x;
}
symmetric(i=0,{valueOf:_=>i++})
function ouroborobj(x) {
return x in x;
}
ouroborobj([0])
function truth(x) {
return x.valueOf() && !x;
}
truth((() => { Number.prototype.valueOf =() => true; return Number(0); })())
Last active
October 12, 2018 11:45
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return true to win
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