배열 회전시키기 / 기초

Author: JooKangsan

JooKangSan/배열/배열의 원소 길이.js …angSan/배열/Length_of_elements_in_array.jsJooKangSan/배열/배열의 원소 길이.js renamed to JooKangSan/배열/Length_of_elements_in_array.js JooKangSan/배열/배열의 원소 길이.js renamed to JooKangSan/배열/Length_of_elements_in_array.js

@@ -8,4 +8,4 @@ function solution(strlist) {
 
 function solution(strlist) {
     return strlist.map(str => str.length);
-}
+}

JooKangSan/배열/Rotate_array.js

@@ -0,0 +1,19 @@
+function solution(numbers, direction) {
+  var answer = [];
+  if(direction == "right"){
+      numbers.unshift(numbers[numbers.length-1])
+      numbers.pop();
+  }else{
+      numbers.push(numbers[0])
+      numbers.shift();
+  }
+  answer = numbers
+  return answer;
+}
+
+function solution(numbers, direction) {
+  if(direction === "right") {
+      return [numbers[numbers.length-1], ...numbers.slice(0, -1)];
+  }
+  return [...numbers.slice(1), numbers[0]];
+}