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Add,Edit And Delete Rows From Table Dynamically Using JavaScript

Last Updated : Jul 1, 2023

IN - JavaScript HTML | Written & Updated By - Ashish

In this tutorial we will show you how to do different operations with table dynamically like add rows ,edit rows, delete rows and save the edited rows on table using javascript.

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Add,Edit And Delete Rows From Table Dynamically Using JavaScript

CHECK OUT THIS TUTORIAL LIVE DEMO →

To Add,Edit And Delete Rows From Table Dynamically It Takes Only Two Steps:-

  1. Make a HTML file and define markup
  2. Make a js file and define scripting

Step 1. Make a HTML file and define markup

We make a HTML file and save it with a name table.html 

<html>
<head>
<script type="text/javascript" src="table_script.js"></script>
</head>
<body>
<div id="wrapper">
<table align='center' cellspacing=2 cellpadding=5 id="data_table" border=1>
<tr>
<th>Name</th>
<th>Country</th>
<th>Age</th>
</tr>

<tr id="row1">
<td id="name_row1">Ankit</td>
<td id="country_row1">India</td>
<td id="age_row1">20</td>
<td>
<input type="button" id="edit_button1" value="Edit" class="edit" onclick="edit_row('1')">
<input type="button" id="save_button1" value="Save" class="save" onclick="save_row('1')">
<input type="button" value="Delete" class="delete" onclick="delete_row('1')">
</td>
</tr>

<tr id="row2">
<td id="name_row2">Shawn</td>
<td id="country_row2">Canada</td>
<td id="age_row2">26</td>
<td>
<input type="button" id="edit_button2" value="Edit" class="edit" onclick="edit_row('2')">
<input type="button" id="save_button2" value="Save" class="save" onclick="save_row('2')">
<input type="button" value="Delete" class="delete" onclick="delete_row('2')">
</td>
</tr>

<tr id="row3">
<td id="name_row3">Rahul</td>
<td id="country_row3">India</td>
<td id="age_row3">19</td>
<td>
<input type="button" id="edit_button3" value="Edit" class="edit" onclick="edit_row('3')">
<input type="button" id="save_button3" value="Save" class="save" onclick="save_row('3')">
<input type="button" value="Delete" class="delete" onclick="delete_row('3')">
</td>
</tr>

<tr>
<td><input type="text" id="new_name"></td>
<td><input type="text" id="new_country"></td>
<td><input type="text" id="new_age"></td>
<td><input type="button" class="add" onclick="add_row();" value="Add Row"></td>
</tr>

</table>
</div>

</body>
</html>

In this step we create a table and insert some sample rows of data and create 3 buttons for every row edit, save and delete and insert table_script.js file which we were going to made in next step.

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Step 2. Make a js file and define scripting

We make a js file and save it with a name table_script.js 

function edit_row(no)
{
 document.getElementById("edit_button"+no).style.display="none";
 document.getElementById("save_button"+no).style.display="block";
	
 var name=document.getElementById("name_row"+no);
 var country=document.getElementById("country_row"+no);
 var age=document.getElementById("age_row"+no);
	
 var name_data=name.innerHTML;
 var country_data=country.innerHTML;
 var age_data=age.innerHTML;
	
 name.innerHTML="<input type='text' id='name_text"+no+"' value='"+name_data+"'>";
 country.innerHTML="<input type='text' id='country_text"+no+"' value='"+country_data+"'>";
 age.innerHTML="<input type='text' id='age_text"+no+"' value='"+age_data+"'>";
}

function save_row(no)
{
 var name_val=document.getElementById("name_text"+no).value;
 var country_val=document.getElementById("country_text"+no).value;
 var age_val=document.getElementById("age_text"+no).value;

 document.getElementById("name_row"+no).innerHTML=name_val;
 document.getElementById("country_row"+no).innerHTML=country_val;
 document.getElementById("age_row"+no).innerHTML=age_val;

 document.getElementById("edit_button"+no).style.display="block";
 document.getElementById("save_button"+no).style.display="none";
}

function delete_row(no)
{
 document.getElementById("row"+no+"").outerHTML="";
}

function add_row()
{
 var new_name=document.getElementById("new_name").value;
 var new_country=document.getElementById("new_country").value;
 var new_age=document.getElementById("new_age").value;
	
 var table=document.getElementById("data_table");
 var table_len=(table.rows.length)-1;
 var row = table.insertRow(table_len).outerHTML="<tr id='row"+table_len+"'><td id='name_row"+table_len+"'>"+new_name+"</td><td id='country_row"+table_len+"'>"+new_country+"</td><td id='age_row"+table_len+"'>"+new_age+"</td><td><input type='button' id='edit_button"+table_len+"' value='Edit' class='edit' onclick='edit_row("+table_len+")'> <input type='button' id='save_button"+table_len+"' value='Save' class='save' onclick='save_row("+table_len+")'> <input type='button' value='Delete' class='delete' onclick='delete_row("+table_len+")'></td></tr>";

 document.getElementById("new_name").value="";
 document.getElementById("new_country").value="";
 document.getElementById("new_age").value="";
}

In this step we made 4 functions to perform different operation in table.We will explain all these functions one by one. In first function that is edit_row() function is used to edit rows.

In this function we get row id in 'no' variable and then we hide and edit button and display the save button then we get all the data of edit row and insert the textbox with data in edit row to make rows editable.

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In second function that is save_row() function is used to save the edited row.In this function we get the value of all three text box inside edit rows and insert the data in row when user clicks on save button and then change the display option of edit and save button.

In third function that is delete_row() function is used to delete particular rows when user clicks of delete button of their respective row.

In fourth function that is add_row() function is used to add new rows to table.

In this function we get the value of all the three new textbox used to insert data then we insert the row in last-1 position beacause in our case last position in filled by our three textboxes thats why we use -1 to insert the new row before the new textbox row and the we clear the three new textbox field.

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Thats all, this is how to Add, Edit And Delete Rows From Table Dynamically Using JavaScript. You can customize this code further as per your requirement. And please feel free to give comments on this tutorial.

I hope this tutorial on javascript dynamic table helps you and the steps and method mentioned above are easy to follow and implement.

CHECK OUT THIS TUTORIAL LIVE DEMO →