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

05 Sep, 2019
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.
<!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>
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.
<!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>
Output:
Before clicking on the button:
After clicking on the button:
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