Message from JavaScript discussions

July 2019

— If validation fails, do e.preventDefault() then

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I have to use signature creation of data. I have to pass the data through a function before it send to server.so if I use action method how can I do that?

— Same way

— Just add a click event listener to the submit

— Do you mean you have to transform the data?

— You can grab the data from the form using the FormData API

— I validate first data through a function..then the signature create through another function..then send through Ajax through another function

Message permanent page

— I don't understand

— Https://developer.mozilla.org/en-US/docs/Web/API/FormData

— I couldn't understand it by reading this link

— Could you give me an example

— If I set the button as Submit you are saying call the functions in action?