diff --git a/projects/003-string-edit-distance/js/index.js b/projects/003-string-edit-distance/js/index.js
index e69de29..b17cb94 100644
--- a/projects/003-string-edit-distance/js/index.js
+++ b/projects/003-string-edit-distance/js/index.js
@@ -0,0 +1,61 @@
+const prompt = require('prompt-sync')();
+
+const calculateEditDostance = (firstString, secondString) => {
+    const emptyArr = [];
+
+    if (firstString === secondString) {
+        return 0;
+    }
+
+    for (let i = 0; i < firstString.length; i++) {
+        if (
+            firstString[i] !== secondString[i] &&
+            firstString.length >= secondString.length
+        ) {
+            emptyArr.push(i);
+        }
+    }
+
+    for (let j = 0; j < secondString.length; j++) {
+        if (
+            firstString[j] !== secondString[j] &&
+            firstString.length < secondString.length
+        ) {
+            emptyArr.push(j);
+        }
+    }
+    return emptyArr.length;
+};
+
+const firstString = prompt('Enter something');
+const secondString = prompt('Enter something');
+console.log(
+    ` The edit distance between the two strings is equal to: ${calculateEditDostance(
+        firstString,
+        secondString
+    )}`
+);
+
+// if (firstString === secondString) {
+//     console.log(0); // caso base
+// }
+// for (let i = 0; i < firstString.length; i++) {
+//     if (
+//         firstString[i] !== secondString[i] &&
+//         firstString.length >= secondString.length
+//     ) {
+//         emptyArr.push(i);
+//     }
+// }
+
+// for (let j = 0; j < secondString.length; j++) {
+//     if (
+//         firstString[j] !== secondString[j] &&
+//         firstString.length < secondString.length
+//     ) {
+//         emptyArr.push(j);
+//     }
+// }
+
+// // console.log(emptyArr);
+// console.log(emptyArr.length);