Quiz · Asynchronous code · lesson 11 of 12

Quiz — the order of Promise.all values

What does the program print (lines separated by spaces)?

JavaScript

function wait(ms, value) {
    return new Promise((resolve) => {
        setTimeout(() => resolve(value), ms);
    });
}

Promise.all([wait(30, "a"), wait(10, "b")])
    .then((values) => console.log(values.join(" ")));
console.log("start");

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