Submit Form If at least one Checkbox is Checked

The form will not be submitted until at least one check box is checked or selected. Jquery is used for this purpose.

Form Selector

The code is pretty simple and self explanatory but still here is it's brief explanation. I have put my main code inside a function that will always execute when someone visit your web page.

I have used form selector to target the form and a function will execute whenever someone tries to submit the form. This function will check if at least one check box is checked or not.

If Condition

Inside this function i have used if condition, The if condition will output true only if at least one input type checkbox is checked. For this purpose input:checkbox selector is used to select all the check boxes

Filter Method

filter method of jquery is used to target only those check boxes which are checked.

Length Property

length property is used which returns the number of elements in the jQuery objects (in this case the checked checkbox) to see if at least one checkbox is selected or not.

JQuery Code

JQuery Code is given below. Feel free to use it in your projects.

 if ($('input:checkbox').filter(':checked').length < 1){
        alert("Please Check at least one Check Box");
 return false;

Note: Always include Jquery Library before using this code in your project or web page.

Video Tutorial

Change HTML Button Text using JQuery Get Text of HTML Element using JQuery Get Selected Dropdown value using JQuery OnChange Append Table Row in JQuery Count number of Rows in a Table using JQuery Set Textarea Value using JQuery Change Button Text using JQuery Highlight Alternate Table Row using JQuery Show and Hide Element on Click using JQuery Open Link in New Window using JQuery Get Current Page URL using JQuery Count Number of Words using JQuery Add HTML Element Before Selected Element Using JQuery Add HTML Element After Selected Element Using JQuery Preview Selected Image Using JQuery Convert Image To Base64 String Using JQuery Open Link in New Tab using JQuery Disable Right Click on Website Using JQuery Hide Element when user click outside using JQuery Check Uncheck Checkbox using JQuery Change HTML Element Width On Hover Using JQuery Reset HTML Form Using JQuery - reset() Method and trigger() Method How To Get Value of Selected Radio Button Using jQuery How To Check If HTML Element Has a Child Using JQuery Submit Form If at least one Checkbox is Checked Disable All Form Elements using JQuery