How to create editable div using JavaScript ?

Last Updated : 13 Oct, 2020

In this article, we will be explaining to you how to create an editable div using HTML, CSS, and JavaScript. An editable div is one on which is you will click then it will generate an editable text area to edit or to write any text on your browser itself. After editing, when you click on somewhere else on your browser then that text will be displayed as a constant text (without editable).

Prerequisites: You should be familiar with the basics of HTML, CSS, and JavaScript.

Creating structure: Create two files for HTML, and JavaScript. To create these files run the following command

Syntax:
```
$ touch index.html app.js
```

Step 1: Edit index.html. This file contains the following Code.

HTML

<!DOCTYPE html> 
<html lang="en"> 
    
    <body> 
  
        <h1 style="color: green;   
                   text-align: center;"> 
            Creating Editable Div GeeksforGeeks 
        </h1> 
  
        <div style="text-align: center;  
                    margin-left: 35%;"  
             class="container"> 
            <div id="first"></div> 
        </div> 
  
    </body> 
    
    <script src="app.js"></script> 
</html> 

Step 2: Edit the app.js file. This file contains the following Code.

Javascript

// Creating a new element 
  
let editableDiv = document.createElement('div'); 
          
// Adding text to that created element 
  
let value = localStorage.getItem('text');    
let text; 
  
if (value == null){ 
    text = document.createTextNode 
    ('Click on it to edit this Editable Div'); 
} 
else{ 
    text = document.createTextNode(value); 
} 
  
editableDiv.appendChild(text); 
editableDiv.setAttribute('id', 'elem'); 
editableDiv.setAttribute('class', 'elem'); 
editableDiv.setAttribute('style', 
'font-size:3rem;border:3px solid; 
 width:350px;height:200px;'); 
  
// Access the main container 
  
let container = document.querySelector('.container'); 
  
// Inserting the element with id = first 
  
container.insertBefore(editableDiv, first); 
  
// Adding event listener to the divElem 
  
editableDiv.addEventListener('click',function (){ 
  
let lengthOfTextAreas =  
    document.getElementsByClassName('textarea').length; 
                      
if(lengthOfTextAreas == 0){ 
    let html = elem.innerHTML; 
    editableDiv.innerHTML = 
  
    `<textarea class="textarea form-control" 
    id="textarea" rows="3">  
    ${html}</textarea>`; 
} 
  
// Listening the blur event on textarea 
  
let textarea = document.getElementById('textarea'); 
  
textarea.addEventListener('blur',function() { 
    elem.innerHTML = textarea.value; 
    localStorage.setItem( 
    'text', textarea.value);  
  
    }) 
});

Final Solution: This is the combination of the above two steps.

HTML

<!DOCTYPE html> 
<html lang="en"> 
    
    <body> 
  
        <h1 style="color: green;   
                   text-align: center;"> 
            Creating Editable Div GeeksforGeeks 
        </h1> 
  
        <div style="text-align: center;  
                    margin-left: 35%;"  
             class="container"> 
            <div id="first"></div> 
        </div> 
  
    </body> 
      
    <script> 
  
        // Creating a new element 
  
            let editableDiv = document.createElement('div'); 
              
            // Adding text to that created element 
              
            let value = localStorage.getItem('text');    
            let text; 
              
            if (value == null){ 
                text = document.createTextNode 
                ('Click on it to edit this Editable Div'); 
            } 
            else{ 
                text = document.createTextNode(value); 
            } 
              
            editableDiv.appendChild(text); 
            editableDiv.setAttribute('id', 'elem'); 
            editableDiv.setAttribute('class', 'elem'); 
            editableDiv.setAttribute('style', 
            'font-size:3rem;border:3px solid; 
             width:350px;height:200px;'); 
              
            // Access the main container 
              
            let container = document.querySelector('.container'); 
              
            // Inserting the element with id = first 
              
            container.insertBefore(editableDiv, first); 
              
            // Adding event listener to the divElem 
              
            editableDiv.addEventListener('click',function (){ 
              
            let lengthOfTextAreas =  
                document.getElementsByClassName('textarea').length; 
                                  
            if(lengthOfTextAreas == 0){ 
                let html = elem.innerHTML; 
                editableDiv.innerHTML = 
              
               `<textarea class="textarea form-control" 
                id="textarea" rows="3">  
                ${html}</textarea>`; 
            } 
              
            // Listening the blur event on textarea 
              
            let textarea = document.getElementById('textarea'); 
              
            textarea.addEventListener('blur',function() { 
                elem.innerHTML = textarea.value; 
                localStorage.setItem( 
               'text', textarea.value);  
              
                }) 
            });  
                
    </script> 
  
</html> 