add Solution

Author: Neil94n

solution/0066.Plus One/Solution2.js

@@ -0,0 +1,18 @@
+/**
+ * @param {number[]} digits
+ * @return {number[]}
+ */
+var plusOne = function(digits) {
+    for (let i = digits.length - 1; i >= 0; i--) {
+        if (digits[i] < 9) {
+            digits[i]++
+            break
+        } else {
+            digits[i] = 0
+        }
+    }
+    if (digits[0] == 0) {
+        digits.unshift(1)
+    }
+    return digits
+};