diff --git a/.DS_Store b/.DS_Store
new file mode 100644
index 0000000..9c0ea4e
Binary files /dev/null and b/.DS_Store differ
diff --git a/src/.DS_Store b/src/.DS_Store
new file mode 100644
index 0000000..01fa114
Binary files /dev/null and b/src/.DS_Store differ
diff --git a/src/isolate-duplicates/index.js b/src/isolate-duplicates/index.js
index 79ae426..4eba81f 100644
--- a/src/isolate-duplicates/index.js
+++ b/src/isolate-duplicates/index.js
@@ -1,3 +1,31 @@
-function isolateDuplicates(text) {}
+function isolateDuplicates(text) {
+    function isolateDuplicates(text) {
+
+        if (typeof text !== 'string') {
+          throw new Error('Please enter a valid string')
+        }
+      
+        let lowerText = text.toLowerCase()
+      
+        let newString = ""
+        let count = 0
+      
+        for (let i = 0; i < text.length; i++) {
+          newString += text[i]
+      
+          if (lowerText[i] === lowerText[i - 1] && lowerText[i] === lowerText[i + 1] && lowerText[i] !== lowerText[i - 2]) {
+            newString += '['
+            count++
+          }
+      
+          if (lowerText[i] === lowerText[i - 1] && lowerText[i] !== lowerText[i + 1] && lowerText[i] === lowerText[i - 2] ) {
+            newString += ']'
+          }
+        }
+        return [newString, count]
+      }
+      
+      console.log(isolateDuplicates("aaAabbcdefffffffg"))
+}
 
 module.exports = isolateDuplicates;
diff --git a/src/morse/index.js b/src/morse/index.js
index cf65063..d1cdc90 100644
--- a/src/morse/index.js
+++ b/src/morse/index.js
@@ -57,7 +57,21 @@ const MORSE_CODE = {
 };
 
 Object.freeze(MORSE_CODE);
+ 
+function morse(text) {
+  let _morseArr = text.trim().split(" ");
+  let _arrOfDecodedWords = _morseArr.map((item) => {
+    let getMorseCodeFromItem = item.split(" ");
 
-function morse(text) {}
+    let getWordsFromItemArray = getMorseCodeFromItem.map((value) => {
 
+      let decodedLetter = MORSE_CODE[VALUE];
+      return decodedLetter;
+    })
+    return getWordsFromItemArray.join("")
+  })
+    return _arrOfDecodedWords.join (" ");
+}
+
+console.log(morse(",-"))
 module.exports = morse;
diff --git a/src/remove-dulplicates/index.js b/src/remove-dulplicates/index.js
index 75c6c9b..80ff06d 100644
--- a/src/remove-dulplicates/index.js
+++ b/src/remove-dulplicates/index.js
@@ -1,3 +1,16 @@
-function removeDuplicates(obj) {}
+function removeDuplicates(obj) {
+    function removeDuplicates(obj) {
+        let n = [];
+      
+       let rep = (a, b) => [...new Set([...a].filter( x => !b.includes(x)))];
+      
+       return Object.entries(obj).reverse().map(element => {
+        const aux = n;
+        n = [...new Set([...n, ...element[1]])];
+      
+        return [element[0], [...new Set(rep(element[1], aux))]];
+       }).reduce((arrays, array) => ((arrays[array[0]] = array[1]), arrays), {});
+      }
+}
 
 module.exports = removeDuplicates;