What is the location to enter the function I wish to execute in Bootstrap JavaScript?

I need help implementing the following JavaScript code into my web app to ensure that all fields are filled out before allowing the information to be processed. Where and how should I include the function to check if all fields are populated?

// Here is a JavaScript snippet that disables form submissions until all fields are filled
(function () {
'use strict'

  // Find all forms that need custom validation
  var forms = document.querySelectorAll('.needs-validation')

  // Go through each form and prevent submission
  Array.prototype.slice.call(forms)
    .forEach(function (form) {
      form.addEventListener('submit', function (event) {
        if (!form.checkValidity()) {
          event.preventDefault()
          event.stopPropagation()
        }

        form.classList.add('was-validated')
      }, false)
    })
})()

Answer №1

When evaluating a condition with an if statement, you can include an else statement to handle the case where the condition is not valid. This allows you to execute different code based on the validity of the condition.

if (!form.checkValidity()) {
  event.preventDefault(); 
  event.stopPropagation();
 } else {
   // place your code here
 }
    

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