function objstr(obj) {
var k, cls='';
for (k in obj) {
if (obj[k]) {
cls && (cls += ' ');
cls += k;
}
}
return cls;
}
objstr({
abcd: Math.random() <= 0.5,
efghijkl: Math.random() <= 0.5,
mnopqrstuvwxyz: Math.random() <= 0.5,
efghijklmnopqrstuvwxyz: Math.random() <= 0.5,
abcdefghijklmnopqrstuvwxyz: Math.random() <= 0.5,
});
"" +
(Math.random() <= 0.5 ? " abcd" : "") +
(Math.random() <= 0.5 ? " efghijkl" : "") +
(Math.random() <= 0.5 ? " mnopqrstuvwxyz" : "") +
(Math.random() <= 0.5 ? " efghijklmnopqrstuvwxyz" : "") +
(Math.random() <= 0.5 ? " abcdefghijklmnopqrstuvwxyz" : "");
let _;
"" +
(Math.random() <= 0.5 ? (_ = true, '') + "abcd" : "") +
(Math.random() <= 0.5 ? (_ ? ' ' : (_ = true, '')) + "efghijkl" : "") +
(Math.random() <= 0.5 ? (_ ? ' ' : (_ = true, '')) + "mnopqrstuvwxyz" : "") +
(Math.random() <= 0.5 ? (_ ? ' ' : (_ = true, '')) + "efghijklmnopqrstuvwxyz" : "") +
(Math.random() <= 0.5 ? (_ ? ' ' : (_ = true, '')) + "abcdefghijklmnopqrstuvwxyz" : "");