examples/validation/dist/index.js
function getInputGroup(input) {
        var el = input;
        while ((el = el.parentNode) && !el.classList.contains(this.config.classInputGroup)) {}
        return el;
    }
function getInputGroup(input) {
        var el = input;
        while ((el = el.parentNode) && !el.classList.contains(this.config.classInputGroup)) {}
        return el;
    }
function getInputGroup ( input ) { var el = input ; while ( ( el = el . parentNode ) && ! el . classList . contains ( this . config . classInputGroup ) ) { } return el ; }
Find closest parent inputGroup element by Input element

@param {HTMLElement} input

@returns {HTMLElement}
Find closest parent inputGroup element by Input element