feat: recursion

javascript/recursion/q7.js

@@ -0,0 +1,20 @@
+let seven = totalIntegers([[[5], 3], 0, 2, ["foo"], [], [4, [5, 6]]]); // 7
+
+function totalIntegers(arr) {
+  let total = 0;
+
+  if (arr.length === 0) return 0;
+
+  if (typeof arr !== "number") {
+    let numb = arr.shift();
+
+    if (typeof numb === "number") {
+      total += 1;
+    } else if (Array.isArray(numb)) {
+      total += totalIntegers(numb);
+    }
+  }
+  return (total += totalIntegers(arr));
+}
+
+console.log(seven);