let total = 1 + 2 * 3;
const list = [first, , ...rest];
if(flag) {total += list[0] ?? 0;} else if(other) total--;
for(let i = 0; i < 3; i++) total += i;
while(total > 0) total--;
do total++; while(total < 2);
switch(kind){case "a":total += 1;break;default:total = 0;}
try {work();} catch(err) {handle(err);} finally {done();}
function add(a, b){return a + b;};
class Box extends Base{static count = 0;value = 1;constructor(v){this.value = v;}get current(){return this.value;}set current(next){this.value = next;}static{this.count++;}};
({key: total}).key;
new Box(1).current();
value?.[index];
