javascript - JQuery - Delete table row if delete button is clicked

I'm creating a basic database that's intended to only be stored in memory as practice in Javascript. Each new row gets it own corresponding delete and edit buttons. My problem now is how to get these delete buttons to work, that when you click on one it deletes it's row. Here is my code at this moment:

Javascript

function onload(){
$("#addbutton").on("click",addRow);

$(".delete").onclick(function(){
   $(this).closest('tr').remove(); 
});

    var i = 1;

    function addRow(){        
        var newRow = "<tr rowID='" + i + "'>"+"<td><div>"+$("#namebox").val()+
                    "</div></td>"+"<td><div>"+$("#surnamebox").val()+"</div></td>"+"<td><div>"+$("#agebox").val()+"<td><div><button id='" + i + "' class='delete' name='delete'type='button'>DELETE</button></div></td>"+"<td><div><button class='edit' name='edit'type='button'>EDIT</button></div></td><td><p>"+ i + "</p></td></tr>"; //Adds the row with content and 
                            // buttons
        $(newRow).appendTo("#maintable"); //Append the new row
            // to the table
        // Next three mands clear the input boxes
        $("#namebox").val('');
        $("#surnamebox").val('');
        $("#agebox").val('');
        // Add to the numer of rows in the table
        i++;
    }// addRow END
};

HTML

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Memory-Only Database</title>
<link rel="stylesheet" href="css/style.css">
<script src="js/script.js"></script>
<script 
src=".2.1/jquery.min.js">
</script>
<script src=".12.1/jquery-
ui.min.js"></script>
</head>
<body onload="onload()">
<div id="header">
    <h2>Memory-Only Database</h2>
</div>
<div id="input-table">
<table id="maintable" style="width: 60%">
    <tr>
        <th>Name</th>
        <th>Surname</th>
        <th>Age</th>
        <th id="buttons1">buttons1</th>
        <th id="buttons2">buttons2</th>
        <th id="counter">counter</th>
    </tr>
    <tr>
        <td>
            <input id="namebox" name="name" type="text" value="">
        </td>
        <td>
            <input id="surnamebox" name="surname" type="text" value="">
        </td>
        <td>
            <input id="agebox" name="age" type="number" value="">
        </td>
        <td>
            <button id="addbutton" name="add" type="button">ADD</button> 
        </td>
    </tr>
    </table>
   </div>
    </body>    
    </html>

CSS

body{
 background-color: darkcyan;
}

div#header{
 position: relative;
 left: 30em;
 width: 18em;
 text-align: center;
}
div#input-table{
 width:50em;
}

table,th,tr,td{
 border: 1px solid black;
 border-collapse: collapse;    
}

td{
text-align: center;
}

th#buttons{
width: inherit;
 }

Javascript

function onload(){
$("#addbutton").on("click",addRow);

$(".delete").onclick(function(){
   $(this).closest('tr').remove(); 
});

    var i = 1;

    function addRow(){        
        var newRow = "<tr rowID='" + i + "'>"+"<td><div>"+$("#namebox").val()+
                    "</div></td>"+"<td><div>"+$("#surnamebox").val()+"</div></td>"+"<td><div>"+$("#agebox").val()+"<td><div><button id='" + i + "' class='delete' name='delete'type='button'>DELETE</button></div></td>"+"<td><div><button class='edit' name='edit'type='button'>EDIT</button></div></td><td><p>"+ i + "</p></td></tr>"; //Adds the row with content and 
                            // buttons
        $(newRow).appendTo("#maintable"); //Append the new row
            // to the table
        // Next three mands clear the input boxes
        $("#namebox").val('');
        $("#surnamebox").val('');
        $("#agebox").val('');
        // Add to the numer of rows in the table
        i++;
    }// addRow END
};

HTML

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Memory-Only Database</title>
<link rel="stylesheet" href="css/style.css">
<script src="js/script.js"></script>
<script 
src="https://ajax.googleapis./ajax/libs/jquery/3.2.1/jquery.min.js">
</script>
<script src="https://ajax.googleapis./ajax/libs/jqueryui/1.12.1/jquery-
ui.min.js"></script>
</head>
<body onload="onload()">
<div id="header">
    <h2>Memory-Only Database</h2>
</div>
<div id="input-table">
<table id="maintable" style="width: 60%">
    <tr>
        <th>Name</th>
        <th>Surname</th>
        <th>Age</th>
        <th id="buttons1">buttons1</th>
        <th id="buttons2">buttons2</th>
        <th id="counter">counter</th>
    </tr>
    <tr>
        <td>
            <input id="namebox" name="name" type="text" value="">
        </td>
        <td>
            <input id="surnamebox" name="surname" type="text" value="">
        </td>
        <td>
            <input id="agebox" name="age" type="number" value="">
        </td>
        <td>
            <button id="addbutton" name="add" type="button">ADD</button> 
        </td>
    </tr>
    </table>
   </div>
    </body>    
    </html>

CSS

body{
 background-color: darkcyan;
}

div#header{
 position: relative;
 left: 30em;
 width: 18em;
 text-align: center;
}
div#input-table{
 width:50em;
}

table,th,tr,td{
 border: 1px solid black;
 border-collapse: collapse;    
}

td{
text-align: center;
}

th#buttons{
width: inherit;
 }

Share Improve this question asked Jul 2, 2017 at 16:21 Daniel 31 gold badge1 silver badge2 bronze badges

where you want to place delete button – Mujthaba Ibrahim Commented Jul 2, 2017 at 16:38

Add a ment |

3 Answers 3

Sorted by: Reset to default 1

You should use event delegation for delete button. since you are adding button dynamically.

$(document).on("click",'.delete',function(){

   $(this).closest('tr').remove(); 
});

function onload(){
$("#addbutton").on("click",addRow);


    var i = 1;

    function addRow(){        
        var newRow = "<tr rowID='" + i + "'>"+"<td><div>"+$("#namebox").val()+
                    "</div></td>"+"<td><div>"+$("#surnamebox").val()+"</div></td>"+"<td><div>"+$("#agebox").val()+"<td><div><button id='" + i + "' class='delete' name='delete'type='button'>DELETE</button></div></td>"+"<td><div><button class='edit' name='edit'type='button'>EDIT</button></div></td><td><p>"+ i + "</p></td></tr>"; 
//Adds the row with content and 
                            // buttons
        $(newRow).appendTo("#maintable"); //Append the new row
            // to the table
        // Next three mands clear the input boxes
        $("#namebox").val('');
        $("#surnamebox").val('');
        $("#agebox").val('');
        // Add to the numer of rows in the table
        i++;
    }// addRow END
};


$(document).on("click",'.delete',function(){
    
   $(this).closest('tr').remove(); 
});

body{
 background-color: darkcyan;
}

div#header{
 position: relative;
 left: 30em;
 width: 18em;
 text-align: center;
}
div#input-table{
 width:50em;
}

table,th,tr,td{
 border: 1px solid black;
 border-collapse: collapse;    
}

td{
text-align: center;
}

th#buttons{
width: inherit;
 }

<script 
src="https://ajax.googleapis./ajax/libs/jquery/3.2.1/jquery.min.js">
</script>
<script src="https://ajax.googleapis./ajax/libs/jqueryui/1.12.1/jquery-
ui.min.js"></script>
</head>
<body onload="onload()">
<div id="header">
    <h2>Memory-Only Database</h2>
</div>
<div id="input-table">
<table id="maintable" style="width: 60%">
    <tr>
        <th>Name</th>
        <th>Surname</th>
        <th>Age</th>
        <th id="buttons1">buttons1</th>
        <th id="buttons2">buttons2</th>
        <th id="counter">counter</th>
    </tr>
    <tr>
        <td>
            <input id="namebox" name="name" type="text" value="">
        </td>
        <td>
            <input id="surnamebox" name="surname" type="text" value="">
        </td>
        <td>
            <input id="agebox" name="age" type="number" value="">
        </td>
        <td>
            <button id="addbutton" name="add" type="button">ADD</button> 
        </td>
    </tr>
    </table>
   </div>

There is no onclick method in jQuery, use click instead.

$(".delete").click(function() {
  $(this).closest("tr").remove();
});

<script src="https://ajax.googleapis./ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table>
  <tr>
    <td>Row 1</td>
    <td><button class="delete">Del</button></td>
  </tr>
  <tr>
    <td>Row 2</td>
    <td><button class="delete">Del</button></td>
  </tr>
  <tr>
    <td>Row 3</td>
    <td><button class="delete">Del</button></td>
  </tr>
</table>

Another way you can delete row .... during adding new row give that row an id and call an onclick function during delete.

 function deleterow(id){
     $("#newrow-"+id+"").remove();
}
function onload(){
$("#addbutton").on("click",addRow);


var i = 1;

function addRow(){        
    var newRow = "<tr id='newrow-"+i+"'>"+"<td><div>"+$("#namebox").val()+
                "</div></td>"+"<td><div>"+$("#surnamebox").val()+"</div></td>"+"<td><div>"+$("#agebox").val()+"<td><div><button id='" + i + "' class='delete' name='delete' type='button' onclick='deleterow("+i+")'>DELETE</button></div></td>"+"<td><div><button class='edit' name='edit'type='button' >EDIT</button></div></td><td><p>"+ i + "</p></td></tr>"; //Adds the row with content and 
                        // buttons
    $(newRow).appendTo("#maintable"); //Append the new row
        // to the table
    // Next three mands clear the input boxes
    $("#namebox").val('');
    $("#surnamebox").val('');
    $("#agebox").val('');
    // Add to the numer of rows in the table
    i++;
}// addRow END

};

body{
 background-color: darkcyan;
}

div#header{
 position: relative;
 left: 30em;
 width: 18em;
 text-align: center;
}
div#input-table{
 width:50em;
}

table,th,tr,td{
 border: 1px solid black;
 border-collapse: collapse;    
}

td{
text-align: center;
}

th#buttons{
width: inherit;
 }

<script 
src="https://ajax.googleapis./ajax/libs/jquery/3.2.1/jquery.min.js">
</script>
<script src="https://ajax.googleapis./ajax/libs/jqueryui/1.12.1/jquery-
ui.min.js"></script>
</head>
<body onload="onload()">
<div id="header">
    <h2>Memory-Only Database</h2>
</div>
<div id="input-table">
<table id="maintable" style="width: 60%">
    <tr>
        <th>Name</th>
        <th>Surname</th>
        <th>Age</th>
        <th id="buttons1">buttons1</th>
        <th id="buttons2">buttons2</th>
        <th id="counter">counter</th>
    </tr>
    <tr>
        <td>
            <input id="namebox" name="name" type="text" value="">
        </td>
        <td>
            <input id="surnamebox" name="surname" type="text" value="">
        </td>
        <td>
            <input id="agebox" name="age" type="number" value="">
        </td>
        <td>
            <button id="addbutton" name="add" type="button">ADD</button> 
        </td>
    </tr>
    </table>
   </div>

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