You'll see that you can select as many (or as few) checkboxes as you like. If you are reading this article, you know that adding custom styles to default checkboxes and radio buttons using just CSS is a pain. Conclusion. When this is added to a checkbox, that checkbox is selected as soon as the page loads (i.e. In the example below, try selecting more than one checkbox. Radio buttons allow the user to select one option only. Much easier to use. The Question Items menu is the open by default when you select the + Item button on a survey page. This will select and deselect all checkboxes: function checkAll() { var checkboxes = document.getElementsByTagName('input'), val = null; for (var i = 0; i < checkboxes.length; i++) { if (checkboxes[i].type == 'checkbox') { if (val === null) val = checkboxes[i].checked; checkboxes[i].checked = val; … JavaScript. You can specify multiple checkboxes all with the same name, in which case they will belong to the same group. Subscribe to get a quick email whenever I add new articles, free goodies, or special offers. Edit in JSFiddle Alternatively, to get all unchecked checkboxes, you can use the :not() pseudo-class which selects any elements that don’t match with the specified selectors. Please check the below demo, we have a “Select all” checkbox at the top and all items checkboxes are listed under the “Select all” checkbox. If user selects manually all checkboxes for rows on the table then the checkbox in table header will be checked automatically to show that all checkboxes on the table body are checked. User can select more than one option which is required for the task. link to this subheading The Basic Formula. A checkbox can have only one value — for example, "yes" or "true". You can set a default value by using the checked attribute. Each