How to concatenate variable in string in javascript

Question

I am using this

var abc = jQuery(\'#pl_hid_addon_name\').val(); 
alert(abc);

var atLeastOneIsChecked = jQuery(\'input[name=\"addon-\"\'+abc+\']:checked\').         


        

Answer 1

var atLeastOneIsChecked = jQuery('input[name="addon-"'+abc+']:checked').length;
                                                    ^
                                                    |

You used the closing " at the wrong place

var atLeastOneIsChecked = jQuery('input[name="addon-'+abc+'"]:checked').length;
                                                           ^
                                                           |