From a511d9534a9c98f8fe3e17da062972b2949e6f31 Mon Sep 17 00:00:00 2001
From: Jhon Mosk <jhon-mosk@yandex.ru>
Date: Fri, 14 Jul 2023 14:49:45 +0300
Subject: [PATCH] Lab work is ready

---
 Exercises/.prettierrc |  7 +++++++
 Exercises/1-seq.js    |  8 +++++++-
 Exercises/2-array.js  | 10 +++++++++-
 JavaScript/2-chain.js | 13 ++++---------
 package.json          |  2 +-
 5 files changed, 28 insertions(+), 12 deletions(-)
 create mode 100644 Exercises/.prettierrc

diff --git a/Exercises/.prettierrc b/Exercises/.prettierrc
new file mode 100644
index 0000000..4cb85b8
--- /dev/null
+++ b/Exercises/.prettierrc
@@ -0,0 +1,7 @@
+{
+  "trailingComma": "es5",
+  "tabWidth": 2,
+  "semi": true,
+  "singleQuote": true,
+  "space-before-function-paren": ["error", "never"]
+}
diff --git a/Exercises/1-seq.js b/Exercises/1-seq.js
index 0cc00a7..3f27dd6 100644
--- a/Exercises/1-seq.js
+++ b/Exercises/1-seq.js
@@ -1,5 +1,11 @@
 'use strict';
 
-const seq = (f) => (g) => (x) => 0;
+const seq = (f) => (g) => {
+  if (typeof g === 'number') {
+    return f(g);
+  }
+
+  return seq((x) => f(g(x)));
+};
 
 module.exports = { seq };
diff --git a/Exercises/2-array.js b/Exercises/2-array.js
index b6d47cf..cf26fe5 100644
--- a/Exercises/2-array.js
+++ b/Exercises/2-array.js
@@ -1,5 +1,13 @@
 'use strict';
 
-const array = () => null;
+const array = () => {
+  const data = [];
+  const obj = (index) => data[index];
+
+  obj.push = (value) => data.push(value);
+  obj.pop = () => data.pop();
+
+  return obj;
+};
 
 module.exports = { array };
diff --git a/JavaScript/2-chain.js b/JavaScript/2-chain.js
index 1bf2a6b..0969661 100644
--- a/JavaScript/2-chain.js
+++ b/JavaScript/2-chain.js
@@ -1,22 +1,17 @@
-'use strict';
+"use strict";
 
 const hash = () => {
   const data = {};
-  Object.defineProperty(data, 'add', {
+  Object.defineProperty(data, "add", {
     enumerable: false,
     value(key, value) {
       data[key] = value;
       return data;
-    }
+    },
   });
   return data;
 };
 
 // Usage
 
-console.dir(
-  hash()
-    .add('name', 'Marcus')
-    .add('city', 'Roma')
-    .add('born', 121)
-);
+console.dir(hash().add("name", "Marcus").add("city", "Roma").add("born", 121));
diff --git a/package.json b/package.json
index ebfc0c9..c4de81a 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,7 @@
   "author": "Timur Shemsedinov <timur.shemsedinov@gmail.com>",
   "license": "MIT",
   "scripts": {
-    "test": "eslint ./Exercises; hpw",
+    "test": "eslint ./Exercises && hpw",
     "ci": "eslint ./Exercises && hpw"
   },
   "dependencies": {