Merge pull request #64 from front-studium/Insung-Jo

`week10` 문제 완료했습니다.

Author: Insung-Jo

Insung-Jo/각도기.js Insung-Jo/level_0/각도기.jsInsung-Jo/각도기.js renamed to Insung-Jo/level_0/각도기.js

@@ -0,0 +1,6 @@
+function solution(str1, str2) {
+  if(typeof str1 !== 'string' || typeof str2 !== 'string') throw new Error('문자를 입력해주세요.');
+  const result = str1.indexOf(str2) !== -1 ? 1 : 2;
+
+  return result;
+}

Insung-Jo/level_0/문자열 안에 문자열.js

@@ -0,0 +1,12 @@
+function solution(n) {
+  if(typeof n !== 'number') throw new Error('정수를 입력해주세요.');
+  if(n <= 1) return 0;
+
+  let result = 0;
+
+  for(let i = 2; i <= n; i+=2){
+    result += i;
+  }
+
+  return result;
+}