From 0ae5426991164b6e9f655515122dc8fc1edcedcb Mon Sep 17 00:00:00 2001
From: Aadil <77232799+aadil42@users.noreply.github.com>
Date: Wed, 21 Jun 2023 20:17:50 +0530
Subject: [PATCH 1/4] Create 0071-simplify-path.js

Solved simplify-path in JS.
---
 javascript/0071-simplify-path.js | 33 ++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 javascript/0071-simplify-path.js

diff --git a/javascript/0071-simplify-path.js b/javascript/0071-simplify-path.js
new file mode 100644
index 000000000..bd0dcfe9a
--- /dev/null
+++ b/javascript/0071-simplify-path.js
@@ -0,0 +1,33 @@
+/**
+ * Stack
+ * https://leetcode.com/problems/simplify-path/
+ * 
+ * Time O(n) | Space O(n)
+ * @param {string} path
+ * @return {string}
+ */
+var simplifyPath = function(path) {
+    let currunt = '';
+    let myStack = [];
+    path = '/' + path + '/';
+    for(let i = 0; i < path.length; i++) {
+        
+        console.log(myStack);
+        if(path[i] === '/') {
+            if(currunt == '..') {
+                if(myStack.length) {
+                    myStack.pop();
+                }
+            } else if(currunt !== '' && currunt !== '.') {
+                myStack.push(currunt);
+            }
+            currunt = '';
+        } else {
+            currunt += path[i];
+        }
+    }
+
+    myStack = myStack.join('/');
+    myStack = '/' + myStack;
+    return myStack;
+};

From ffc213f059a9cd617da9b3e52f1593f9303f0eab Mon Sep 17 00:00:00 2001
From: Aadil <77232799+aadil42@users.noreply.github.com>
Date: Sun, 2 Jul 2023 21:19:37 +0530
Subject: [PATCH 2/4] Update 0071-simplify-path.js

using backticks
---
 javascript/0071-simplify-path.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/javascript/0071-simplify-path.js b/javascript/0071-simplify-path.js
index bd0dcfe9a..7bc9b6ca0 100644
--- a/javascript/0071-simplify-path.js
+++ b/javascript/0071-simplify-path.js
@@ -9,7 +9,7 @@
 var simplifyPath = function(path) {
     let currunt = '';
     let myStack = [];
-    path = '/' + path + '/';
+    path = `/${path}/`;
     for(let i = 0; i < path.length; i++) {
         
         console.log(myStack);

From 7bd673b93558171d58bc3ccb0b8bc09428212345 Mon Sep 17 00:00:00 2001
From: Aadil <77232799+aadil42@users.noreply.github.com>
Date: Mon, 3 Jul 2023 17:24:41 +0530
Subject: [PATCH 3/4] Update 0071-simplify-path.js

Removed unnecessary nested if statment
---
 javascript/0071-simplify-path.js | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/javascript/0071-simplify-path.js b/javascript/0071-simplify-path.js
index 7bc9b6ca0..8a4faa3c3 100644
--- a/javascript/0071-simplify-path.js
+++ b/javascript/0071-simplify-path.js
@@ -12,12 +12,9 @@ var simplifyPath = function(path) {
     path = `/${path}/`;
     for(let i = 0; i < path.length; i++) {
         
-        console.log(myStack);
         if(path[i] === '/') {
             if(currunt == '..') {
-                if(myStack.length) {
-                    myStack.pop();
-                }
+                myStack.pop();
             } else if(currunt !== '' && currunt !== '.') {
                 myStack.push(currunt);
             }
@@ -25,6 +22,7 @@ var simplifyPath = function(path) {
         } else {
             currunt += path[i];
         }
+        
     }
 
     myStack = myStack.join('/');

From f65d0738013d9ad51f1f1c997644398b614c6de3 Mon Sep 17 00:00:00 2001
From: Aadil <77232799+aadil42@users.noreply.github.com>
Date: Tue, 4 Jul 2023 20:04:19 +0530
Subject: [PATCH 4/4] Update 0071-simplify-path.js

Modularizing the code.
---
 javascript/0071-simplify-path.js | 55 +++++++++++++++++---------------
 1 file changed, 30 insertions(+), 25 deletions(-)

diff --git a/javascript/0071-simplify-path.js b/javascript/0071-simplify-path.js
index 8a4faa3c3..0bdaef80b 100644
--- a/javascript/0071-simplify-path.js
+++ b/javascript/0071-simplify-path.js
@@ -1,31 +1,36 @@
+
 /**
  * Stack
- * https://leetcode.com/problems/simplify-path/
- * 
- * Time O(n) | Space O(n)
+ * Time O(N) | Space O(N)
+ * https://leetcode.com/problems/simplify-path
  * @param {string} path
  * @return {string}
  */
-var simplifyPath = function(path) {
-    let currunt = '';
-    let myStack = [];
-    path = `/${path}/`;
-    for(let i = 0; i < path.length; i++) {
-        
-        if(path[i] === '/') {
-            if(currunt == '..') {
-                myStack.pop();
-            } else if(currunt !== '' && currunt !== '.') {
-                myStack.push(currunt);
-            }
-            currunt = '';
-        } else {
-            currunt += path[i];
-        }
-        
-    }
-
-    myStack = myStack.join('/');
-    myStack = '/' + myStack;
-    return myStack;
+var simplifyPath = (path, slash = '/', stack = []) => {    
+    const paths = path.split(slash).filter(Boolean);
+
+    for (const _path of paths) traversePath(_path, stack);
+
+    return `${slash}${stack.join(slash)}`;
+};
+
+const traversePath = (path, stack) => {
+    if (canPush(path)) return stack.push(path);
+
+    if (canPop(path, stack)) stack.pop();
 };
+
+const canPush = (path) => !(
+    isCurrentDirectory(path) ||
+    isParentDirectory(path)
+);
+
+const canPop = (path, stack) =>
+    isParentDirectory(path) &&
+    !isEmpty(stack);
+
+const isCurrentDirectory = (path) => (path === '.');
+
+const isParentDirectory = (path) => (path === '..');
+
+const isEmpty = ({ length }) => (0 === length);