diff --git a/2-js-basics/3-making-decisions/let allStudents = [.js b/2-js-basics/3-making-decisions/let allStudents = [.js
new file mode 100644
index 00000000..1e3e27a5
--- /dev/null
+++ b/2-js-basics/3-making-decisions/let allStudents = [.js	
@@ -0,0 +1,28 @@
+let allStudents = [
+  'A',
+  'B-',
+  1,
+  4,
+  5,
+  2
+]
+
+let studentsWhoPass = [];
+
+for (let i = 0; i < allStudents.length; i++){
+    let studentGrade = allStudents[i];
+
+    if (typeof studentGrade === 'number') {
+        if (studentGrade >= 3) {
+            studentsWhoPass.push(studentGrade);
+        }
+    }
+
+    else if (typeof studentGrade === 'string') {
+        let passingGrades = ['A', 'A-', 'B', 'B-', 'C', 'C-'];
+        if (passingGrades.includes(studentGrade)) {
+            studentsWhoPass.push(studentGrade);
+        }
+    }
+}
+console.log(studentsWhoPass); 
\ No newline at end of file