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함수4_문제06_장바구니

대분류

STEP10 함수/클래스

문제 난이도

필수

소분류

함수4_문제

영상

문제

<script>

  /*
  	[문제1]
		회원별로 아이템 구매목록을 출력하시오.
	[정답1]
		[이만수 ==> 고래밥3,칸쵸1] 
		[김철민 ==> 고래밥1] 
		[이영희 ==> 고래밥1,새우깡2]
	
	[문제2]
		아이템별로 판매개수를 출력하시오.
	[정답2]
		[고래밥 ==> 5][새우깡 ==> 2][칸쵸 ==> 1]
  */

	let itemData = "1001/고래밥,1002/새우깡,1003/칸쵸";
	let userData = "3001/이만수,3002/김철민,3003/이영희";
	
	let cartData = "";
	cartData += "3001/1001\n";
	cartData += "3001/1001\n";
	cartData += "3003/1002\n";
	cartData += "3001/1001\n";
	cartData += "3001/1003\n";
	cartData += "3003/1002\n";
	cartData += "3003/1001\n";
	cartData += "3002/1001\n";

  </script>
Java
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해설

<script>

    /*
    	[문제1]
				회원별로 아이템 구매목록을 출력하시오.
			[정답1]
				[이만수 ==> 고래밥3,칸쵸1] 
				[김철민 ==> 고래밥1] 
				[이영희 ==> 고래밥1,새우깡2]
		
			[문제2]
				아이템별로 판매개수를 출력하시오.
			[정답2]
				[고래밥 ==> 5][새우깡 ==> 2][칸쵸 ==> 1]
    */

	function tokenData(data, separator) {
		let list = [];

		let token = data.split(separator);
		for(let i=0; i<token.length; i++) {
			let temp = token[i].split("/");
			list.push(temp);
		}
		return list;
	}

	function shoppingList(userList, itemList, cartList) {
		let result = [];
		for(let i=0; i<userList.length; i++) {
			let info = [userList[i][1]];
			for(let j=0; j<itemList.length; j++) {
				let count = 0;
				for(let k=0; k<cartList.length; k++) {
					if(userList[i][0] == cartList[k][0] && itemList[j][0] ==cartList[k][1]) {
						count += 1;
					}
				}
				info.push(count);
			}
			result.push(info);
		}
		return result;
	}

	function countList(resultList) {
		let totalList = [];
		for(let i=1; i<resultList[0].length; i++) {
			let total = 0;
			for(let j=0; j<resultList.length; j++) {
				total += resultList[j][i];
			}
			totalList.push(total);
		}
		return totalList;
	}

	function printData(data) {
		for(let i=0; i<data.length; i++) {
			document.write(data[i] + "<br>");
		}
		document.write("<br>");
	}

	let itemData = "1001/고래밥,1002/새우깡,1003/칸쵸";
	let userData = "3001/이만수,3002/김철민,3003/이영희";
	
	let cartData = "";
	cartData += "3001/1001\n";
	cartData += "3001/1001\n";
	cartData += "3003/1002\n";
	cartData += "3001/1001\n";
	cartData += "3001/1003\n";
	cartData += "3003/1002\n";
	cartData += "3003/1001\n";
	cartData += "3002/1001\n";

	let itemList = [];
	let userList = [];
	let cartList = [];

	let rs1 = [];

	itemList = tokenData(itemData, ",");
	userList = tokenData(userData, ",");
	cartList = tokenData(cartData, "\n");

	rs1 = shoppingList(userList, itemList, cartList);
	printData(rs1);

	rs2 = countList(rs1);
	document.write(rs2);

  </script>
Java
복사