Skip to contentSkip to footer

End Developer Junior Front Interview Questions

Salaries
Interviews

16,956 end developer junior front interview questions shared by candidates

what will be printed? console.log('a'); setTimeout(console.log('b'), 0); Promise.resolve().then(() => console.log('c')); console.log('d'); what is a promise, why it exists? how does the event loop work? what is the difference between: useEffect(()=>{ setX(x +1); setX(x +1); setX(x +1); }) and useEffect(()=>{ setX((x) => x +1); setX((x) => x +1); setX((x) => x +1); })
avatar

Front End Engineer

Interviewed at Amplemarket

4.9★
May 8, 2022

what will be printed? console.log('a'); setTimeout(console.log('b'), 0); Promise.resolve().then(() => console.log('c')); console.log('d'); what is a promise, why it exists? how does the event loop work? what is the difference between: useEffect(()=>{ setX(x +1); setX(x +1); setX(x +1); }) and useEffect(()=>{ setX((x) => x +1); setX((x) => x +1); setX((x) => x +1); })

Viewing 8791 - 8800 interview questions

Glassdoor has 16,956 interview questions and reports from End developer junior front interviews. Prepare for your interview. Get hired. Love your job.