Fix/code smells (#1338)

* ♻️ refactor: improving and fixing some code

* Updated Documentation in README.md

* ♻️ refactor: improving isLeapYear

* 🐛 chore: back changes

* 🐛 fix: using reduce instead forEach

* 🐛 fix: using reduce instead forEach

* 🐛 fix: removing duplicated code

* 🐛 chore: removing .js

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Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>

Data-Structures/Heap/MinPriorityQueue.js

@@ -47,8 +47,7 @@ class MinPriorityQueue {
 
   // returns boolean value whether the heap is full or not
   isFull () {
-    if (this.size === this.capacity) return true
-    return false
+    return this.size === this.capacity
   }
 
   // prints the heap