on submit prevent form code example

Example 1: javascript prevent form submit

<form name="foo" onsubmit="return false">

Example 2: prevent form submission on onsubmit function calls

returning false here won't be executed and the form will be submitted either way. You should also call preventDefault to prevent the default form action for Ajax form submissions.

function mySubmitFunction(e) {
  e.preventDefault();
  someBug();
  return false;
}

Get more references : https://stackoverflow.com/questions/3350247/how-to-prevent-form-from-being-submitted

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Javascript Example

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