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How to remove all rows from a table in JavaScript ?
  • Last Updated : 31 Jul, 2019

Given an HTML document which contains an HTML table and the task is to remove all rows from the HTML table. Removing all rows is different from removing the few rows. This can be done by using JavaScript.

Approach

  • First of all set the ID or unique class to the table.
  • Select the table element and use remove() or detach() method to delete the all table rows.

Example 1: In this example, All rows are deleted by using remove() method.




<!DOCTYPE HTML>
<html>
  
<head>
    <title>
        How to remove all rows from
        a table in JavaScript ?
    </title>
      
    <script src=
    </script>
      
    <style>
        #myCol {
            background: green;
        }
        table {
            color: white;
            margin-left: 150px;
        }
        #Geek_p {
            color: green;
            font-size: 30px;
        }
        td {
            padding: 10px;
        }
    </style>
</head>
  
<body style="text-align:center;">
  
    <h1 style="color:green;"
        GeeksForGeeks 
    </h1>
  
    <table id="table">
        <colgroup>
            <col id="myCol" span="2">
            <col style="background-color:green">
        </colgroup>
          
        <tr>
            <th>S.No</th>
            <th>Title</th>
            <th>Geek_id</th>
        </tr>
        <tr id="row1">
            <td>Geek_1</td>
            <td>GeekForGeeks</td>
            <th>Geek_id_1</th>
        </tr>
        <tr>
            <td>Geek_2</td>
            <td>GeeksForGeeks</td>
            <th>Geek_id_2</th>
        </tr>
        <tr>
            <td>Geek_3</td>
            <td>GeeksForGeeks</td>
            <th>Geek_id_3</th>
        </tr>
        <tr>
            <td>Geek_4</td>
            <td>GeeksForGeeks</td>
            <th>Geek_id_4</th>
        </tr>
    </table>
    <br>
      
    <button onclick="Geeks()">
        Click here
    </button>
      
    <p id="GFG_DOWN" style="
        color:green; font-size: 20px; font-weight: bold;">
    </p>
      
    <script>
        function Geeks() {
            $("#table").remove();
            $("#GFG_DOWN").text
                ("All rows of the table are deleted.");
        }
    </script>
</body>
  
</html>

Output:

  • Before clicking on the button:
  • After clicking on the button:

Example 2: In this example, All rows are deleted by using detach() method.




<!DOCTYPE HTML>
<html>
  
<head>
    <title>
        How to remove all rows from
        a table in JavaScript ?
    </title>
      
    <script src=
    </script>
  
    <style>
        #myCol {
            background: green;
        }
          
        table {
            color: white;
            margin-left: 150px;
        }
          
        #Geek_p {
            color: green;
            font-size: 30px;
        }
          
        td {
            padding: 10px;
        }
    </style>
</head>
  
<body style="text-align:center;">
  
    <h1 style="color:green;"
        GeeksForGeeks 
    </h1>
  
    <table id="table">
        <colgroup>
            <col id="myCol" span="2">
            <col style="background-color:green">
        </colgroup>
          
        <tr id="thead">
            <th>S.No</th>
            <th>Title</th>
            <th>Geek_id</th>
        </tr>
        <tr id="row1">
            <td>Geek_1</td>
            <td>GeekForGeeks</td>
            <th>Geek_id_1</th>
        </tr>
        <tr>
            <td>Geek_2</td>
            <td>GeeksForGeeks</td>
            <th>Geek_id_2</th>
        </tr>
        <tr>
            <td>Geek_3</td>
            <td>GeeksForGeeks</td>
            <th>Geek_id_3</th>
        </tr>
        <tr>
            <td>Geek_4</td>
            <td>GeeksForGeeks</td>
            <th>Geek_id_4</th>
        </tr>
    </table>
    <br>
      
    <button onclick="Geeks()">
        Click here
    </button>
      
    <p id="GFG_DOWN" style=
        "color:green; font-size: 20px; font-weight: bold;">
    </p>
      
    <script>
        function Geeks() {
            $('#table').detach();
            $("#GFG_DOWN").text
                ("All rows of the table are deleted.");
        }
    </script>
</body>
  
</html>

Output:

  • Before clicking on the button:
  • After clicking on the button:



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