diff --git a/projects/m4/005-words-that-occur-most/js/exercise1.txt b/projects/m4/005-words-that-occur-most/js/exercise1.txt
new file mode 100644
index 000000000..85aae6d10
--- /dev/null
+++ b/projects/m4/005-words-that-occur-most/js/exercise1.txt
@@ -0,0 +1,25 @@
+
+Line 1: This is the first line.
+Ciao 2: This is the second line.
+Line 3: This is the third line.
+Line 4: This is the fourth line.
+Line 5: This is the fifth line.
+Line 6: This is the sixth line.
+Line 7: This is the seventh line.
+Line 8: This is the eighth line.
+Line 9: This is the ninth line.
+Line 10: This is the tenth line.
+Line 11: This is the eleventh line.
+Line 12: This is the twelfth line.
+Line 13: This is the thirteenth line.
+Line 14: This is the fourteenth line.
+Line 15: This is the fifteenth line.
+Line 16: This is the sixteenth line.
+Line 17: This is the seventeenth line.
+Line 18: This is the eighteenth line.
+Line 19: This is the nineteenth line.
+Line 20: This is the twentieth line.
+Line 21: This is the twenty-first line.
+Line 22: This is the twenty-second line.
+Line 23: This is the twenty-third line.
+Line 24: This is the twenty-fourth line.
\ No newline at end of file
diff --git a/projects/m4/005-words-that-occur-most/js/index.js b/projects/m4/005-words-that-occur-most/js/index.js
index e69de29bb..ab9b7147c 100644
--- a/projects/m4/005-words-that-occur-most/js/index.js
+++ b/projects/m4/005-words-that-occur-most/js/index.js
@@ -0,0 +1,26 @@
+const { readFile } = require('fs/promises');
+
+let filePath = './exercise1.txt';
+
+// console.log(filePath);
+readFile(filePath)
+    .then((data) => {
+        let arrData = data
+            .toString()
+            .toLowerCase()
+            .replace(/[\/#!?$%\^&\*,.;:{}=\-_`~(), \r\n, ' ']/g, ' ') // Remove all the leading or trailing punctuation marks from each word
+            .split(' ')
+            .filter((element) => element !== ''); // Remove all the blank spaces
+        // console.log(arrData.length);
+
+        const mostOccurredWords = {};
+
+        arrData.forEach((value) => {
+            const occurredWords = mostOccurredWords[value] ?? 0;
+            mostOccurredWords[value] = occurredWords + 1;
+        });
+        console.log(mostOccurredWords);
+    })
+    .catch((error) => {
+        console.log('The program is unable to open the file you indicated');
+    });