How do I get the values of a cheakbox into a js function when the form is submitted?

Question

I want to get the values of the options clicked in the cheakbox input into a JavaScript function. How do I do that?

Answer 1

For modern browsers:

var checkedValue = document.querySelector('.messageCheckbox:checked').value;

By using jQuery:

var checkedValue = $('.messageCheckbox:checked').val();

Pure javascript without jQuery:

var checkedValue = null; var inputElements = document.getElementsByClassName('messageCheckbox'); for(var i=0; inputElements[i]; ++i){ if(inputElements[i].checked){ checkedValue = inputElements[i].value; break; } }

https://stackoverflow.com/questions/11599666/get-the-value-of-checked-checkbox

Answer 2

https://code.sololearn.com/WCfZ2lZpFXwx/?ref=app

Answer 3

Alexander Sokolov is this messagecheakbox a class name you added or a keyword?