added grade calculator

sadeq93 · sadeq93 · commit ae5606a78be8 · 2020-07-25T23:02:13.000+02:00
diff --git a/Week2/grade calculateor.js b/Week2/grade calculateor.js
@@ -0,0 +1,34 @@
+'use strict';
+
+const calculateGrades = (grade) => {
+  let gradeCalc = grade;
+  // Uses if statement to check valid grade
+  if (gradeCalc >= 0 && gradeCalc <= 100) {
+    // here we start with if statement to check which grade should be fit to our student
+    let grade;
+    if (gradeCalc >= 90) {
+      grade = 'A';
+    } else if (gradeCalc >= 80) {
+      grade = 'B';
+    } else if (gradeCalc >= 70) {
+      grade = 'C';
+    } else if (gradeCalc >= 60) {
+      grade = 'D';
+    } else if (gradeCalc >= 50) {
+      grade = 'E';
+    } else {
+      grade = 'F';
+    }
+    return `You got a ${grade} (${gradeCalc}%)!`;
+  } else {
+    // this else statement helps us to show error message when user input the value if it's wrong
+    return 'Please type valid grade!';
+  }
+};
+
+console.log(calculateGrades(100));
+console.log(calculateGrades(89));
+console.log(calculateGrades(79));
+console.log(calculateGrades(69));
+console.log(calculateGrades(59));
+console.log(calculateGrades(49));
