truthiness.js (345B)
1 for (var i = 0; i < 9; i++) 2 assertEq(Symbol() ? 1 : 0, 1, "symbols are truthy"); 3 4 var a = [0, 0, 0, 0, 0, Symbol(), Symbol()]; 5 var b = []; 6 function f(i, v) { 7 b[i] = v ? "yes" : "no"; 8 } 9 for (var i = 0; i < a.length; i++) 10 f(i, a[i]); 11 assertEq(b[b.length - 3], "no"); 12 assertEq(b[b.length - 2], "yes"); 13 assertEq(b[b.length - 1], "yes");