javascript generator and async/await

Author: ChauDinh

Generator/index.js

@@ -0,0 +1,85 @@
+// function* generator(i) {
+//   yield i;
+//   yield i + 10;
+// }
+
+// const generator2 = function*(i) {
+//   yield i;
+//   yield i + 10;
+// };
+
+// let gen = generator(10);
+// console.log(gen);
+// console.log(gen.next());
+// console.log(gen.next());
+
+// function* foo() {
+//   let index = 0;
+//   while (true) {
+//     yield index++;
+//   }
+// }
+
+// const bar = foo();
+// console.log(bar.next());
+// console.log(bar.next());
+
+// const foo = function*() {
+//   yield 10;
+//   yield 20;
+// };
+
+// const bar = foo();
+// console.log(bar.next());
+// console.log(bar.next());
+// console.log(bar.next());
+
+// function* foo(i) {
+//   yield i;
+//   yield i + 1;
+//   yield i + 2;
+// }
+
+// const bar = function*(j) {
+//   yield j;
+//   yield* foo(j);
+//   yield j + 10;
+// };
+
+// const fooBar = bar(10);
+
+// console.log(fooBar.next());
+// console.log(fooBar.next());
+// console.log(fooBar.next());
+// console.log(fooBar.next());
+// console.log(fooBar.next());
+// console.log(fooBar.next());
+
+// function* logGenerator() {
+//   console.log(0);
+//   console.log(1, yield);
+//   console.log(2, yield);
+//   console.log(3, yield);
+// }
+
+// const logger = logGenerator();
+
+// logger.next("peter");
+// logger.next("click");
+
+let foo;
+function* bar() {
+  console.log("before async");
+  yield new Promise(resolve =>
+    setTimeout(() => resolve("Happy new year!"), 1000)
+  ).then(x => {
+    console.log(x);
+    foo.next();
+  });
+  console.log("after async");
+}
+
+foo = bar();
+foo.next();
+
+console.log("Happy new year!");