如何獲取選定的表行並在jquery/javascript中重寫單元格html

Question

我的 bootstrap 表如下...表內容和按鈕由 php 代碼生成，但為了簡單起見，我將僅使用 HTML 版本：

<table id="usertable" class="table table-striped">
                <thead class="bg-light">
                    <tr>
                        <th>Username</th>
                        <th>First Name</a></th>
                        <th>Last Name</th>
                        <th>Phone</th>
                        <th>Role ID</th>
                        <th></th>
                    </tr>
                </thead>
                <tbody id="usertable1">
                    <tr>
                        <td>Josh96</td>
                        <td>Josh</td>
                        <td>Martin</td>
                        <td>613-737-0551</td>
                        <td>3</td>
                        <td name="buttons">
                            <div class="btn-group pull-right">
                                <button id="buttonEdit" type="button" class="btn btn-sm btn-default" onclick="editRow(this);" style="">
                                    <i class="fs-6 bi-pencil-fill"></i>
                                </button>
                                <button id="buttonDelete" type="button" class="btn btn-sm btn-default" onclick="deleteRow(this);" style="">
                                    <i class="fs-6 bi-trash3-fill" aria-hidden="true"></i>
                                </button>
                                <button id="buttonSave" type="button" class="btn btn-sm btn-default" style="display: none;" onclick="saveChanges(this);">
                                    <i class="fs-6 bi-check-circle-fill"></i>
                                </button>
                                <button id="buttonCancel" type="button" class="btn btn-sm btn-default" style="display: none;" onclick="Cancel();">
                                    <i class="fs-6 bi-x-circle-fill" aria-hidden="true"></i>
                                </button>
                            </div>
                        </td>
                    </tr>
                </tbody>
            </table>

我正在嘗試將一行單元格的 html 更改為 JavaScript 或 jquery。例如，單擊編輯按鈕后，我想要

<td>Josh96</td>
<td>Josh</td>
<td>Martin</td>
<td>613-737-0551</td>
<td>3</td>

成為

<td><input class= "form-control input-sm edit" id="username_Josh96" value ="Josh96"></input></td>
<td><input class= "form-control input-sm edit" id="firstname_Josh96" value ="Josh"></input></td>
<td><input class= "form-control input-sm edit" id="lastname_Josh96" value ="Martin"></input></td>
<td><input class= "form-control input-sm edit" id="Phone_Josh96" value ="613-737-0551"></input></td>
<td><input class= "form-control input-sm edit" id="RoleID_Josh96" value ="3"></input></td>

我的javascript如下：

function editRow(r){
  var $row = $(r).parents('tr'); 
  var $cols = $row.find('td');
 //found out how get the current row content but haven't yet figured out how to change the html 
  console.log("current table row content: "+ $cols.text());
}

我知道我必須首先確定行索引，然后提取每個單元格的值，我將它們放在一個數組中。 我會將用戶名存儲在一個變量中，以便為行中的每個 tds 創建我想要的 ID，最后重寫 html 以獲得輸入。 javascript新來的，還沒弄明白

Answer 1

 function editRow(r) { var $row = $(r).parents('tr'); var username = $row.find('td').eq(0).text(); var firstname = $row.find('td').eq(1).text(); var lastname = $row.find('td').eq(2).text(); var phone = $row.find('td').eq(3).text(); var roleId = $row.find('td').eq(4).text(); let newTr = '<td><input class= "form-control input-sm edit" id="username_' + username + '" value ="' + username + '"></input></td><td><input class= "form-control input-sm edit" id="firstname_' + username + '" value ="' + firstname + '"></input></td><td><input class= "form-control input-sm edit" id="lastname_' + username + '" value ="' + lastname + '"></input></td><td><input class= "form-control input-sm edit" id="Phone_' + username + '" value ="' + phone + '"></input></td><td><input class= "form-control input-sm edit" id="RoleID_' + username + '" value ="' + roleId + '"></input></td>'; $row.html(newTr); }

 <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script> <table id="usertable" class="table table-striped"> <thead class="bg-light"> <tr> <th>Username</th> <th>First Name</a></th> <th>Last Name</th> <th>Phone</th> <th>Role ID</th> <th></th> </tr> </thead> <tbody id="usertable1"> <tr> <td>Josh96</td> <td>Josh</td> <td>Martin</td> <td>613-737-0551</td> <td>3</td> <td name="buttons"> <div class="btn-group pull-right"> <button id="buttonEdit" type="button" class="btn btn-sm btn-default" onclick="editRow(this);" style="">E <i class="fs-6 bi-pencil-fill"></i> </button> <button id="buttonDelete" type="button" class="btn btn-sm btn-default" onclick="deleteRow(this);" style="">D <i class="fs-6 bi-trash3-fill" aria-hidden="true"></i> </button> <button id="buttonSave" type="button" class="btn btn-sm btn-default" style="display: none;" onclick="saveChanges(this);"> <i class="fs-6 bi-check-circle-fill"></i> </button> <button id="buttonCancel" type="button" class="btn btn-sm btn-default" style="display: none;" onclick="Cancel();"> <i class="fs-6 bi-x-circle-fill" aria-hidden="true"></i> </button> </div> </td> </tr> </tbody> </table>