이전에 올렸던 input 값 증가 질문입니다

이전에 올렸던 input 값 증가 질문입니다

QA

이전에 올렸던 input 값 증가 질문입니다

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    <table>
                            <thead>
                              <tr>
                                <th>품명</th>
                                <th>가격</th>
                                <th>단위</th>
                                <th>수량</th>
                              </tr>
                            </thead>
                            <tbody>
                                <tr>
                                  <td>상황버섯</td>
                                  <td>25000</td>
                                  <td>200g</td>
                                  <td style="position:relative;">
                                  <input type="text" name="wr_12" class="count" value="0">
                                  <p class="down">-</p>
                                  <p class="up">+</p>
                                  </td>
                                </tr>
                                <tr>
                                  <td>생굼벵이</td>
                                  <td>50000</td>
                                  <td>1kg</td>
                                  <td style="position:relative;">
                                  <input type="text" name="wr_13" class="count" value="0">
                                  <p class="down">-</p>
                                  <p class="up">+</p>
                                  </td>
                                </tr>
                                <tr>
                                  <td>건조굼벵이</td>
                                  <td>80000</td>
                                  <td>200g</td>
                                  <td style="position:relative;">
                                  <input type="text" name="wr_14" class="count" value="0">
                                  <p class="down">-</p>
                                  <p class="up">+</p>
                                  </td>
                                </tr>
                                <tr>
                                  <td>유산균 굼벵이환</td>
                                  <td>120000</td>
                                  <td>200g</td>
                                  <td style="position:relative;">
                                  <input type="text" name="wr_15" class="count" value="0">
                                  <p class="down">-</p>
                                  <p class="up">+</p>
                                  </td>
                                </tr>
                                <tr>
                                  <td>유산균 굼벵이분말</td>
                                  <td>120000</td>
                                  <td>200g</td>
                                  <td style="position:relative;">
                                  <input type="text" name="wr_16" class="count" value="0">
                                  <p class="down">-</p>
                                  <p class="up">+</p>
                                  </td>
                                </tr>
                                <tr>
                                  <td>홍굼보</td>
                                  <td>35000</td>
                                  <td>3.75g*10환</td>
                                  <td style="position:relative;">
                                  <input type="text" name="wr_17" class="count" value="0">
                                  <p class="down">-</p>
                                  <p class="up">+</p>
                                  </td>
                                </tr>
                                <tr>
                                  <td>꽃벵이과립</td>
                                  <td>150000</td>
                                  <td>120g*60포</td>
                                  <td style="position:relative;">
                                  <input type="text" name="wr_18" class="count" value="0">
                                  <p class="down">-</p>
                                  <p class="up">+</p>
                                  </td>
                                </tr>
                                <tr>
                                  <td>꽃벵이 젤리스틱</td>
                                  <td>150000</td>
                                  <td>20g*60포</td>
                                  <td style="position:relative;">
                                  <input type="text" name="wr_19" class="count" value="0">
                                  <p class="down">-</p>
                                  <p class="up">+</p>
                                  </td>
                                </tr>
                                <tr>
                                  <td>진하게달인 꽃벵이</td>
                                  <td>190000</td>
                                  <td>80ml*80포</td>
                                  <td style="position:relative;">
                                  <input type="text" name="wr_20" class="count" value="0">
                                  <p class="down">-</p>
                                  <p class="up">+</p>
                                  </td>
                                </tr>
                                <tr>
                                  <td>[애견간식]냠굼냠굼</td>
                                  <td>9000</td>
                                  <td>150g</td>
                                  <td style="position:relative;">
                                  <input type="text" name="wr_21" class="count" value="0">
                                  <p class="down">-</p>
                                  <p class="up">+</p>
                                  </td>
                                </tr>
                            </tbody>
                        </table>
                    </dd>
                </dl>
                <dl class="result_tag">
                        <dt>
                         <strong style="color:#f87b1f;">v</strong> 주문금액                     
                        </dt>
                    <dd style="line-height:2.8;">
                    <input type="hidden" class="sell_price"/>
                        <input type="text" value="0" class="result"  readonly>원
                    </dd>
                </dl>
 
 
<script>
    $(upBtn).click(function(){
        let num = $(this).siblings('input').val();
        num = $(this).siblings('input').val(num*1+1);
     });
 
     $(downBtn).click(function(){
        let num = $(this).siblings('input').val();
        num = $(this).siblings('input').val(num*1-1);
     });
 
     $(".up, .down").on("click", function(){
        let sum = 0;
        $(".count").each(function(){
            sum += parseInt($(this).val());
        });
        $(".result").val(sum);
     });
    });
</script>

 

몇시간전에 올렸던 질문인데 input을 each로 탐색해서 결과창 input에 값을 넘어오게 했습니다.

해결될 문제가 하나 남았는데 

 

                 <tr>

                                  <td>꽃벵이과립</td>

                                  <td>150000</td>

                                  <td>120g*60포</td>

                                  <td style="position:relative;">

                                  <input type="text" name="wr_18" class="count" value="0">

                                  <p class="down">-</p>

                                  <p class="up">+</p>

                                  </td>

                 </tr>

이 코드가 여러개 있는데 카운트 1증가 혹은1감소 했을때  150000이라는 가격이 결과값으로 넘어가면 좋겠습니다.ㅠㅠ

input value 값은 현재 0 으로 해놨는데 

input hidden 으로 value 값을 시험삼아서 150000으로 넣고 증가,감소시키면

카운트input창에는 150001 , 149999 이런식으로 나오고 결과창에도 이숫자 그대로 담기는데 

저는 카운트 input에는 카운트만 담기게 하고 결과에는 계산값을 담고싶습니다.. 

여러개를 해봤지만 도통 생각이 나질 않아서 도움좀 받고싶습니다 ㅠㅠ

 

3696014386_1579154923.8564.png

이 질문에 댓글 쓰기 :

답변 2

value 말고 amount 라는 attribute 를 하나 더 만들어서 따로 계산하면 되지 않나요?

getAttribute('amount') 하면 해당 attrubute 값을 가져 올수 있으니까요

알듯말듯한데 제가 초심자라서 attr을써서 예시로 25000이라는 가격을 변수에 담아서
결과값 value 에 변수를 넣었더니 당연히 25000만 찍혀서..  계산을 어떻게 해줘야할지 모르겠습니다 ㅠㅠ each는 전체를 가져오고있어서 +나 - 버튼 아무거나 눌러도 25000이 나옵니다 ㅠㅠ

코드상에 보면


parseInt($(this).val());

이부분이 value 값을 가져오게 되는것처럼


<input type="text" name="wr_20" class="count" value="0" amout="15000">

한다음에


parseInt($(this).attr('amout')); 


하면 해당 amount 값을 가져옵니다.

그걸로 별도 변수 만들어서 따로 계산하시라는 뜻입니다. ^^

저 정말 여러번 질문하게 되는데..
마지막에 쓴 attr 이 9000인데 계산은 되지만 마지막 것만 불러오고 다른값은 무시되고 어느 input 이든 9000을 불러오게 되는데  이부분은 each로 attr을 불러와야하나요?


$(".up, .down").on("click", function() {
    let sum = 0, price = 0;
    $(".count").each(function() {
        price = parseInt($(this).closest("tr").find("td:eq(1)").text());
        sum += parseInt($(this).val()) * price;
    });
    $(".result").val(sum);
});
답변을 작성하시기 전에 로그인 해주세요.
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