Add a HTML Yes/No field to SharePoint Online Yes/No column via JavaScript/jQuery

I am building a Custom html form and saving all the fields to a SharePoint Online list. I figured out adding text boxes and choice drop downs via JS/jQuery like,

var xxxxxxxx = $ (“#xxxxxxxx”).val(); var yyyyyyyy = $ (“#yyyyyy”).find(“option:selected”).text();

but can’t figure out how to add HTML Checkbox (Yes/No) to a SharePoint Yes/No column.

Please suggest.