배열 회전시키기, 기초

Author: unn04012

unn04012/array/arr_rotate.js

@@ -0,0 +1,19 @@
+function solution(numbers, direction) {
+  const answer = [];
+
+  if (direction === 'right') {
+    for (let i = 0; i < numbers.length - 1; i++) {
+      answer[i + 1] = numbers[i];
+    }
+    answer[0] = numbers[numbers.length - 1];
+  } else {
+    for (let i = numbers.length - 1; i >= 1; i--) {
+      answer[i - 1] = numbers[i];
+    }
+    answer[numbers.length - 1] = numbers[0];
+  }
+
+  return answer;
+}
+
+console.log(solution([4, 455, 6, 4, -1, 45, 6], 'left'));