CodeSpitz73_2_1.js

for (const i of [1, 2, 3, 4]) {
    if (i === 3) break;
    log(i);
}

abc: {
    log('a');
    if (location.href.includes('.com')) break abc;
    log('b');
    let b = 4;
}
log('c');
k:{
    let a = 3;
    const f = () => {
        let a = 5;
        k:{
            break k;
            log(37);
        }
        log(a);
    };
    f();
}

CodeSpitz73_2_2.js

let a = 3, b = 0;
switch (true) {
    case a > 5 && a < 10: log('a', a); break;
    case a > 4: log('b', a); break;
    case a > 3: log('c', a); break;
    case a > 2: log('d', a); break;
    default:
}
a:const c = 3;
if (c === 1) {
    
} else { 
    if (c === 2) {
    
    } else {
        
    }
}

if (c > 5) {
} else switch (c) {   
}

if (c > 5) {
} else for (;;) {   
}

CodeSpitz73_2_3.js

'', false, 0, undefined, null, NaN // falsy
for (; ; ) {
    
}

var a = act.method().c;
while(a) {
    let r = other.action();
    a = act.method().c;
    if (r === 'abc') a = false;
}

do a++; while (a);