Initial commit

shared/defer.js

@@ -0,0 +1,35 @@
+export function Deferred() {
+  const defer = {}
+
+  defer.promise = new Promise(function (resolve, reject) {
+    defer.resolve = resolve
+    defer.reject = reject
+  })
+
+  return defer
+}
+
+export function delay(ms) {
+  const defer = Deferred()
+
+  setTimeout(defer.resolve, ms)
+
+  return defer.promise
+}
+
+export function timeout(ms, cb) {
+  const defer = Deferred()
+  ms = ms || 1000
+
+  const wait = setTimeout(() => {
+    clearTimeout(wait)
+
+    if (cb) {
+      cb && cb(defer.resolve, defer.reject)
+    } else {
+      defer.reject('Timed out in ' + ms + 'ms.')
+    }
+  }, ms)
+
+  return defer.promise
+}