function range(rule, value, source, errors, options) {
	  var len = typeof rule.len === 'number';
	  var min = typeof rule.min === 'number';
	  var max = typeof rule.max === 'number';
	  var val = value;
	  var key = null;
	  var num = typeof value === 'number';
	  var str = typeof value === 'string';
	  var arr = Array.isArray(value);
	  if (num) {
	    key = 'number';
	  } else if (str) {
	    key = 'string';
	  } else if (arr) {
	    key = 'array';
	  }
	  // if the value is not of a supported type for range validation
	  // the validation rule rule should use the
	  // type property to also test for a particular type
	  if (!key) {
	    return false;
	  }
	  if (str || arr) {
	    val = value.length;
	  }
	  if (len) {
	    if (val !== rule.len) {
	      errors.push(util.format(options.messages[key].len, rule.fullField, rule.len));
	    }
	  } else if (min && !max && val < rule.min) {
	    errors.push(util.format(options.messages[key].min, rule.fullField, rule.min));
	  } else if (max && !min && val > rule.max) {
	    errors.push(util.format(options.messages[key].max, rule.fullField, rule.max));
	  } else if (min && max && (val < rule.min || val > rule.max)) {
	    errors.push(util.format(options.messages[key].range, rule.fullField, rule.min, rule.max));
	  }
	}
/**
	 *  Rule for validating minimum and maximum allowed values.
	 *
	 *  @param rule The validation rule.
	 *  @param value The value of the field on the source object.
	 *  @param source The source object being validated.
	 *  @param errors An array of errors that this rule may add
	 *  validation errors to.
	 *  @param options The validation options.
	 *  @param options.messages The validation messages.
	 */
Rule for validating minimum and maximum allowed values.
@param rule The validation rule.
@param value The value of the field on the source object.
@param source The source object being validated.
@param errors An array of errors that this rule may add
validation errors to.
@param options The validation options.
@param options.messages The validation messages.
Rule for validating minimum and maximum allowed values . @param rule The validation rule . @param value The value of the field on the source object . @param source The source object being validated . @param errors An array of errors that this rule may add validation errors to . @param options The validation options . @param options . messages The validation messages .
function range(rule, value, source, errors, options) {
	  var len = typeof rule.len === 'number';
	  var min = typeof rule.min === 'number';
	  var max = typeof rule.max === 'number';
	  var val = value;
	  var key = null;
	  var num = typeof value === 'number';
	  var str = typeof value === 'string';
	  var arr = Array.isArray(value);
	  if (num) {
	    key = 'number';
	  } else if (str) {
	    key = 'string';
	  } else if (arr) {
	    key = 'array';
	  }
	  if (!key) {
	    return false;
	  }
	  if (str || arr) {
	    val = value.length;
	  }
	  if (len) {
	    if (val !== rule.len) {
	      errors.push(util.format(options.messages[key].len, rule.fullField, rule.len));
	    }
	  } else if (min && !max && val < rule.min) {
	    errors.push(util.format(options.messages[key].min, rule.fullField, rule.min));
	  } else if (max && !min && val > rule.max) {
	    errors.push(util.format(options.messages[key].max, rule.fullField, rule.max));
	  } else if (min && max && (val < rule.min || val > rule.max)) {
	    errors.push(util.format(options.messages[key].range, rule.fullField, rule.min, rule.max));
	  }
	}
function range ( rule , value , source , errors , options ) { var len = typeof rule . len === 'number' ; var min = typeof rule . min === 'number' ; var max = typeof rule . max === 'number' ; var val = value ; var key = null ; var num = typeof value === 'number' ; var str = typeof value === 'string' ; var arr = Array . isArray ( value ) ; if ( num ) { key = 'number' ; } else if ( str ) { key = 'string' ; } else if ( arr ) { key = 'array' ; } if ( ! key ) { return false ; } if ( str || arr ) { val = value . length ; } if ( len ) { if ( val !== rule . len ) { errors . push ( util . format ( options . messages [ key ] . len , rule . fullField , rule . len ) ) ; } } else if ( min && ! max && val < rule . min ) { errors . push ( util . format ( options . messages [ key ] . min , rule . fullField , rule . min ) ) ; } else if ( max && ! min && val > rule . max ) { errors . push ( util . format ( options . messages [ key ] . max , rule . fullField , rule . max ) ) ; } else if ( min && max && ( val < rule . min || val > rule . max ) ) { errors . push ( util . format ( options . messages [ key ] . range , rule . fullField , rule . min , rule . max ) ) ; } }
Rule for validating minimum and maximum allowed values.
Rule for validating minimum and maximum allowed values .
// if the value is not of a supported type for range validation // the validation rule rule should use the // type property to also test for a particular type