Jeremiah and Tianlin's attempt roman numerals

js/romanNumerals.js

@@ -1,3 +1,35 @@
-exports.toRoman = function(num) {
+// exports.toRoman = function(num) {
 
-};
+// };
+
+const toRoman = (num) => {
+  let answer = "";
+
+  const map = {
+    M:1000,CM:900, D:500,CD:400, C:100, XC:90,L:50, XV:40, X:10, IX:9, V:5, IV:4, I:1
+  }
+  let a;
+  // Checking for invalid number
+  if (num < 1 || num > 3000) {
+    return "Invalid";
+  // 
+  } else {
+    for (let key in map) {
+      // Getting index of num and assigning to a variable
+      a = Math.floor(num / map[key]);
+      // Checking our new variable location in map
+      if(a >= 0) {
+      // Filters the zeros out
+        for(let i = 0; i < a; i++){
+      // Updates the answer with the correct index location
+          answer += key;
+        }
+      }
+      // Stops infinite
+      num = num % map[key];
+    }
+  }
+  return answer;
+}
+
+console.log(toRoman(100));