AEM6.4 - Multifield with Show checkbox in javascript

Looks like your JavaScript is not correct to work within a MultiField. I will look for examples.

($("coral-checkbox[name='./includebutton'] :checked")  will evaluate to a boolean value either true or false

After that,  (boolean value).length ===1 doesn't make sense hence its breaking and going inside if block

Try this

if($("coral-checkbox[name='./includebutton'] :checked")) {..... }

Dear All, Actually wrongly I have changed sling:resourcetype to granite/ui/components/foundation/form/select . That is why it was not working. Now I have changed to granite/ui/components/coral/foundation/form/select and it is working fine now. Thanks a lot all of your help.