From 7024486ef0ca69019ecd1c35e8fb024012f0a4e2 Mon Sep 17 00:00:00 2001
From: PaIIadium <vladislavkuchin2001@gmail.com>
Date: Wed, 21 Aug 2019 22:23:15 +0300
Subject: [PATCH 1/2] fixed resolve method

---
 JavaScript/9-thenable.js | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/JavaScript/9-thenable.js b/JavaScript/9-thenable.js
index 3e6fe1d..dafd8cb 100644
--- a/JavaScript/9-thenable.js
+++ b/JavaScript/9-thenable.js
@@ -19,10 +19,8 @@ class Thenable {
     const fn = this.fn;
     if (fn) {
       const next = fn(value);
-      if (next) {
-        next.then(value => {
-          this.next.resolve(value);
-        });
+      if (this.next) {
+        this.next.resolve(next);
       }
     }
   }
@@ -41,7 +39,8 @@ const readFile = filename => {
 
 (async () => {
 
-  const file1 = await readFile('9-thenable.js');
+  const file1 = await readFile('9-thenable.js').then(() => 5).then(() => 25); // Doesn`t work in old example
+  console.log(file1);
   console.dir({ length: file1.length });
 
 })();

From 28388bcf369f95df971ff0d9a1e55f1bbaff18ac Mon Sep 17 00:00:00 2001
From: PaIIadium <vladislavkuchin2001@gmail.com>
Date: Thu, 22 Aug 2019 17:54:32 +0300
Subject: [PATCH 2/2] Fixed resolve. Added some examples

---
 JavaScript/9-thenable.js | 24 ++++++++++++++++++++----
 1 file changed, 20 insertions(+), 4 deletions(-)

diff --git a/JavaScript/9-thenable.js b/JavaScript/9-thenable.js
index dafd8cb..dac4433 100644
--- a/JavaScript/9-thenable.js
+++ b/JavaScript/9-thenable.js
@@ -15,10 +15,10 @@ class Thenable {
     return next;
   }
 
-  resolve(value) {
+  async resolve(value) {
     const fn = this.fn;
     if (fn) {
-      const next = fn(value);
+      const next = await fn(value);
       if (this.next) {
         this.next.resolve(next);
       }
@@ -37,10 +37,26 @@ const readFile = filename => {
   return thenable;
 };
 
+const delay = fn => (...args) => {
+  const thenable = new Thenable();
+  setTimeout(thenable.resolve.bind(thenable), 1000, fn(...args));
+  return thenable;
+};
+
+const fn = val => val;
+const mul = val => val * 5;
+const add = val => val + 2;
+
+const fnDel = delay(fn);
+const mulDel = delay(mul);
+const addDel = delay(add);
+
 (async () => {
 
-  const file1 = await readFile('9-thenable.js').then(() => 5).then(() => 25); // Doesn`t work in old example
-  console.log(file1);
+  const file1 = await readFile('9-thenable.js');
   console.dir({ length: file1.length });
 
+  const res = await fnDel(7).then(mulDel).then(add).then(addDel);
+  console.log(res);
+
 })();