example showing that await doesn't block event loop

15-non-blocking.js

@@ -0,0 +1,34 @@
+'use strict'
+
+const { task } = require('./util')
+
+async function getUsers(ids) {
+  const users = []
+  for (const id of ids) {
+    const user = await task({ result: { name: `bob-${id}`, id } })
+    users.push(user)
+  }
+  return users
+}
+
+async function getBatchUno() {
+  console.log('Getting batch uno')
+  const users = await getUsers([ 1, 2, 3 ])
+  console.log('Got batch uno', users)
+}
+
+async function getBatchDos(ids) {
+  console.log('Getting batch dos')
+  const users = await getUsers([ 4, 5, 6 ])
+  console.log('Got batch dos', users)
+}
+
+async function getBatchTres(ids) {
+  console.log('Getting batch tres')
+  const users = await getUsers([ 7, 8, 9 ])
+  console.log('Got batch tres', users)
+}
+
+setTimeout(getBatchUno, 5)
+setTimeout(getBatchDos, 10)
+setTimeout(getBatchTres, 15)