Show Output
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>jQuery Adding Attribute to HTML Element</title> <script src="https://code.jquery.com/jquery-3.5.1.min.js"></script> <script> $(document).ready(function(){ $(".add-attr").click(function(){ $('input[type="checkbox"]').attr("checked", "checked"); }); }); </script> </head> <body> <button type="button" class="add-attr">Select Checkbox</button> <input type="checkbox"> </body> </html>
