Method _getFormElement

src/AutoNumeric.js:1424–1433

* Return the given form element, or defaults to `this.parentForm` if no argument is passed. * * @param {HTMLFormElement|null} [formElement=null] * @returns {HTMLFormElement} * @private

(formElement = null)

     * @private
     */
    _getFormElement(formElement = null) {
        let formElementToUse;
        if (!AutoNumericHelper.isNull(formElement)) {
            formElementToUse = formElement;
        } else {
            formElementToUse = this.parentForm;
        }

        return formElementToUse;
    }

    /**
     * Generate a form handler unique name and store it in the global form handler list.