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Bootstrap/site/docs/4.4/examples/checkout/form-validation.js
2019-11-26 19:12:00 +02:00

21 lines
685 B
JavaScript

// Example starter JavaScript for disabling form submissions if there are invalid fields
(function () {
'use strict'
window.addEventListener('load', function () {
// Fetch all the forms we want to apply custom Bootstrap validation styles to
var forms = document.getElementsByClassName('needs-validation')
// Loop over them and prevent submission
Array.prototype.filter.call(forms, function (form) {
form.addEventListener('submit', function (event) {
if (form.checkValidity() === false) {
event.preventDefault()
event.stopPropagation()
}
form.classList.add('was-validated')
}, false)
})
}, false)
}())