whole_func_string: function range(rule, value, source, errors, options) {
    const len = typeof rule.len === 'number';
    const min = typeof rule.min === 'number';
    const max = typeof rule.max === 'number';
    // 正则匹配码点范围从U+010000一直到U+10FFFF的文字（补充平面Supplementary Plane）
    const spRegexp = /[\uD800-\uDBFF][\uDC00-\uDFFF]/g;
    let val = value;
    let key = null;
    const num = typeof (value) === 'number';
    const str = typeof (value) === 'string';
    const 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 (arr) {
      val = value.length;
    }
    if (str) {
      // 处理码点大于U+010000的文字length属性不准确的bug，如"𠮷𠮷𠮷".lenght !== 3
      val = value.replace(spRegexp, '_').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));
    }
  }
func_code_string: function range(rule, value, source, errors, options) {
    const len = typeof rule.len === 'number';
    const min = typeof rule.min === 'number';
    const max = typeof rule.max === 'number';
    // 正则匹配码点范围从U+010000一直到U+10FFFF的文字（补充平面Supplementary Plane）
    const spRegexp = /[\uD800-\uDBFF][\uDC00-\uDFFF]/g;
    let val = value;
    let key = null;
    const num = typeof (value) === 'number';
    const str = typeof (value) === 'string';
    const 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 (arr) {
      val = value.length;
    }
    if (str) {
      // 处理码点大于U+010000的文字length属性不准确的bug，如"𠮷𠮷𠮷".lenght !== 3
      val = value.replace(spRegexp, '_').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));
    }
  }
func_documentation_string: 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.