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rowlandekemezie/promise.all.js

Created April 6, 2020 12:55
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promise.all.js
// Current. The request is synchronous because the former needs to finish before the later
const earning = await fetchLastMonthEarning(teacherInfo.teacher.teacherId, startDate, endDate);
const teachingHours = await fetchTeachingHours(teacherInfo.teacher.teacherId);
// Refactored. Ensures the request is run concurrently
const [ earning, teachingHours ]= await Promise.all([
fetchLastMonthEarning(teacherInfo.teacher.teacherId, startDate, endDate),
fetchTeachingHours(teacherInfo.teacher.teacherId)
])
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