What is the output of the following? “`js const p = new Promise(resolve => { console.log(‘A’); resolve(‘B’); console.log(‘C’); }); p.then(v => console.log(v)); console.log(‘D’); “`

Question

JavaScript Professional — Medium

What is the output of the following? “`js const p = new Promise(resolve => { console.log(‘A’); resolve(‘B’); console.log(‘C’); }); p.then(v => console.log(v)); console.log(‘D’); “`

Accepted Answer

The output will be: A, C, D, B. The promise `p` is created with a resolve function that logs 'A', resolves with 'B', then logs 'C'. The promise is then resolved with 'B' in the `then` method, followed by logging 'D'.