Copy all the attributes of one element and apply them to another with JavaScript

Last Updated : 24 Jan, 2023

The task is to copy all attributes of one element and apply them to another with the help of JavaScript. Here 2 approaches are discussed.

Approach 1:

Select both elements(target and source element).
Get the properties of source element by using el.prop(‘attributes’) method.
Use .each() method on each object property and set that property to the target element by using .attr() method.

Example: This example implements the above approach.

HTML

<head> 
    <script src= 
"https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"> 
    </script> 
</head> 
<body> 
    <h1 style="color:green;"> 
        GeeksforGeeks 
    </h1> 
    <p id="GFG_UP"> 
    </p> 
    <div id="el1" style="background: green;"> 
        Element 1 
    </div> 
    <br> 
    <div id="el2"> 
        Element 2 
    </div> 
    <br> 
    <button onclick="GFG_Fun()"> 
        click here 
    </button> 
    <p id="GFG_DOWN" style="color: green;"> 
    </p> 
      
      
    <script> 
        var up = document.getElementById('GFG_UP'); 
        var down = document.getElementById('GFG_DOWN'); 
        up.innerHTML = 
        "Click on the button to copy all the attributes of one "+ 
        "element and apply them to another."; 
          
        function GFG_Fun() { 
            var $el1 = $("#el1"); 
            var $el2 = $("#el2"); 
            var attrbts = $el1.prop("attributes"); 
            // loop through element1 attributes and apply them on element2. 
            $.each(attrbts, function() { 
                $el2.attr(this.name, this.value); 
            }); 
            down.innerHTML = 
            "All Attributes of Element 1 are copied to element 2."; 
        } 
    </script> 
</body>

Output:

Copy all the attributes of one element and apply them to another with JavaScript

Approach 2:

Select the both elements(target and source element).
Get the properties of source element by using el.attributes property.
Use .forEach() method on each property and set that property to the target element by using .setAttribute() method.

Example: This example implements the above approach.

HTML

<head> 
    <script src= 
"https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"> 
    </script> 
</head> 
<body> 
    <h1 style="color:green;"> 
        GeeksforGeeks 
    </h1> 
    <p id="GFG_UP"> 
    </p> 
      
      
    <div id="el1" 
            style="background: green; 
                        color: white; 
                        font-size: 26px;"> 
        Element 1 
    </div> 
    <br> 
    <div id="el2"> 
        Element 2 
    </div> 
    <br> 
    <button onclick="GFG_Fun()"> 
        click here 
    </button> 
    <p id="GFG_DOWN" style="color: green;"> 
    </p> 
      
      
    <script> 
        var up = document.getElementById('GFG_UP'); 
        var down = document.getElementById('GFG_DOWN'); 
        up.innerHTML = 
        "Click on the button to copy all the attributes of one element"+ 
        " and apply them to another."; 
          
        function copyAttrs(target, source) { 
            [...source.attributes].forEach(attr => { 
                target.setAttribute(attr.nodeName, attr.nodeValue) 
            }) 
        } 
          
        function GFG_Fun() { 
            var el1 = document.getElementById("el1"); 
            var el2 = document.getElementById("el2"); 
            copyAttrs(el2, el1); 
            down.innerHTML = 
            "All Attributes of Element 1 are copied to element 2."; 
        } 
    </script> 
</body>