event parameter represents the field name.const fv = FormValidation.formValidation(document.getElementById('demoForm'),{...});fv.on('core.field.valid', function(event) {...});
import formValidation from 'formvalidation/dist/es6/core/Core';const fv = formValidation(document.getElementById('demoForm'),{...});fv.on('core.field.valid', function(event) {...});