Transforms each element in an array using an async callback function and returns a promise that resolves to an array of transformed values.
使用异步回调函数转换数组中的每个元素，并返回一个解析为转换后值数组的 promise。
Optional
const users = [{ id: 1 }, { id: 2 }, { id: 3 }];const userDetails = await mapAsync(users, async (user) => { return await fetchUserDetails(user.id);});// Returns: [{ id: 1, name: '...' }, { id: 2, name: '...' }, { id: 3, name: '...' }] Copy
const users = [{ id: 1 }, { id: 2 }, { id: 3 }];const userDetails = await mapAsync(users, async (user) => { return await fetchUserDetails(user.id);});// Returns: [{ id: 1, name: '...' }, { id: 2, name: '...' }, { id: 3, name: '...' }]
// With concurrency limitconst numbers = [1, 2, 3, 4, 5];const results = await mapAsync( numbers, async (n) => await slowOperation(n), 2);// Processes at most 2 operations concurrently Copy
// With concurrency limitconst numbers = [1, 2, 3, 4, 5];const results = await mapAsync( numbers, async (n) => await slowOperation(n), 2);// Processes at most 2 operations concurrently
Transforms each element in an array using an async callback function and returns a promise that resolves to an array of transformed values.
使用异步回调函数转换数组中的每个元素，并返回一个解析为转换后值数组的 promise。