bootstrapvalidator/src/js/validator/lessThan.js

(function($) {
    $.fn.bootstrapValidator.validators.lessThan = {
        /**
         * Return true if the input value is less than or equal to given number
         *
         * @param {BootstrapValidator} validator The validator plugin instance
         * @param {jQuery} $field Field element
         * @param {Object} options Can consist of the following keys:
         * - value: The number used to compare to
         * - inclusive [optional]: Can be true or false. Default is true
         * - message: The invalid message
         * @returns {Boolean}
         */
        validate: function(validator, $field, options) {
            var value = $field.val();
            if (value == '') {
                return true;
            }
            value = parseFloat(value);
            return (options.inclusive === true) ? (value < options.value) : (value <= options.value);
        }
    };
}(window.jQuery));