How to convert list of elements in an array using jQuery ?

Given an HTML document containing a list of elements and the task is to get the values of HTML list and convert it into an array using JavaScript.

Approach:

  • Make a list(Ordered/ Unordered).
  • Select the parent of <li> element and call an anonymous function for every child of parent( .each() or .map() methods ).
  • Take the text value of each child and append that to the array.

Example 1: This example uses .each() method to convert a list of elements in an array.

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<!DOCTYPE HTML>  
<html>  
  
<head>  
    <title>  
        How to convert list of elements
        in an array using jQuery ?
    </title>
      
    <script src=
"https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js">
    </script>
      
    <style>
        #ul {
            width: 80px;
            margin: 0 auto;
        }
    </style>
</head>  
  
<body align = "center">  
      
    <h1 style = "color:green;" >  
        GeeksForGeeks  
    </h1> 
      
    <p id = "GFG_UP" style = 
            "font-size: 15px; font-weight: bold;"> 
    </p>
      
    <ul id = "ul">
        <li>GFG_1</li>
        <li>GFG_2</li>
        <li>GFG_3</li>
    </ul>
      
    <br>
      
    <button onclick = "GFG_Fun()">
        click here
    </button>
      
    <p id = "GFG_DOWN" style = 
        "font-size: 24px; font-weight: bold; color: green;"> 
    </p>
      
    <script>  
        var el_up = document.getElementById('GFG_UP');
        var el_down = document.getElementById('GFG_DOWN');
          
        el_up.innerHTML = "Click on the button to get "
                    + "the values of list in array."; 
          
        function GFG_Fun() {
            var arr = [];
            $("ul li").each(function() { arr.push($(this).text())});
            el_down.innerHTML = '"' + arr.join('", "') + '"';
        } 
    </script>  
</body>  
  
</html>

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Output:


    

  • 
 Before clicking on the button:
    


    • 

  • 
 After clicking on the button:
    


    • 



Example 2: This example uses .map() method to convert a list of elements in an array.











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<!DOCTYPE HTML>   


<html>   


  


<head>   


    <title>   


        How to convert list of elements 


        in an array using jQuery ? 


    </title> 


      


    <script src= 


"https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"> 


    </script> 


      


    <style> 


        #ul { 


            width: 80px; 


            margin: 0 auto; 


        } 


    </style> 


</head>   


  


<body align = "center">   


      


    <h1 style = "color:green;" >   


        GeeksForGeeks   


    </h1>  


      


    <p id = "GFG_UP" style =  


        "font-size: 15px; font-weight: bold;">  


    </p> 


      


    <ul id = "ul"> 


        <li>GFG_1</li> 


        <li>GFG_2</li> 


        <li>GFG_3</li> 


    </ul> 


      


    <br> 


      


    <button onclick = "GFG_Fun()"> 


        click here 


    </button> 


      


    <p id = "GFG_DOWN" style =  


        "font-size: 24px; font-weight: bold; color: green;">  


    </p> 


      


    <script>   


        var el_up = document.getElementById('GFG_UP'); 


        var el_down = document.getElementById('GFG_DOWN'); 


          


        el_up.innerHTML = "Click on the button to get " 


                    + "the values of list in array.";  


          


        function GFG_Fun() { 


            var arr = []; 


            arr = $('li').map(function(j, element) { 


                return $(element).text(); 


            }).get(); 


              


            el_down.innerHTML = '"' + arr.join('", "') + '"'; 


        }  


    </script>   


</body>   


  


</html> 



















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Output:


    

  • 
 Before clicking on the button:
    


    • 

  • 
 After clicking on the button:
    


    • 



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