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

23 Sep, 2021
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 1: This example implements the above approach.  
HTML
<!DOCTYPE HTML><html> <head>    <title>        Copy all the attributes of one element      and apply them to another with JavaScript.    </title>    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js">    </script></head> <body style="text-align:center;">    <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> </html>
Output: 
Before clicking on the button:
After clicking on the button:
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 2: This example implements the above approach. 
HTML
<!DOCTYPE HTML><html> <head>    <title>        Copy all the attributes of one element      and apply them to another with JavaScript.    </title>    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js">    </script></head> <body style="text-align:center;">    <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> </html>
Output: 
Before clicking on the button:
After clicking on the button:
 
 
sweetyty
anikakapoor
JavaScript-Misc
JavaScript
Web Technologies
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