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.
<!DOCTYPE HTML> <html> <head> <title> How to convert list of elements in an array using jQuery ? </title> <script src= </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= </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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