Example: pass value back to generator

tshemsedinov · tshemsedinov · commit 8cc7a7341f5e · 2019-03-04T10:36:48.000+02:00
diff --git a/JavaScript/f-next.js b/JavaScript/f-next.js
@@ -0,0 +1,18 @@
+'use strict';
+
+function* counter(begin, end, delta) {
+  let value = begin;
+  while (end > value) {
+    value += delta;
+    const back = yield value;
+    if (back) value += back;
+    console.log({ back });
+  }
+}
+
+const c = counter(0, 30, 12);
+const val1 = c.next();
+const val2 = c.next();
+const val3 = c.next(150);
+const val4 = c.next();
+console.log({ c, val1, val2, val3, val4 });
