moonlight

• 提供JavaScript常用的功能,類似helper或是utility,讓javascript專案使用
• 可用於Server-side專案,如node.js,或是Client-side專案,如vue,react中
• 發佈於npm中,使用時當作一個package使用
• 可用於es6與commonjs中

Main functions

1. Validator
2. Parser
3. time
4. array
5. hostname
6. Checker
7. Utils
8. Model

Input Validator

• check the input validity with specified rules

• only the validated attribute(s) are returned

• convert data type on validating, e.g '100' to 100 for 'type:number'

• rules

  • required
  • type:[string|date|datetime|isoDatetime|number|email|bool|boolean|null|nonEmptyString|object]
  • same:attributeName

• validator:: obj -> obj -> obj

• examples

     const rules = {
          foo: 'required|type:null', // null
          boo: 'type:bool',  // true, false, 'true', 'false'
          boo: 'type:boolean',  // true, false, 'true', 'false'
   
         // string 
          moo: 'type:string', // string
          moo: 'required|type:emptyString',  // ''
          moo: 'required|type:nonEmptyString',  // non empty string 
          moo: 'required|type:lowerCaseOrNumberString',  // lower case or number string (e.g. 'abc123')
          moo: 'required|type:isNumberString',  // number string  (e.g. '123')
     
          // object 
          boo: 'type:object',  // object
          boo: 'type:emptyObject',  // {}
   
          // same content 
          bar: 'required|same:foo',
    
          // valid values
          loo: 'validValues:[v1,v2,v3]',
    
          aoo: 'type:array', // array
          aoo: 'type:emptyArray', // []
          aoo: 'type:arrayOfString', // ['a','b']
          aoo: 'type:arrayOfInt', // [1,2]
          aoo: 'type:arrayOfNull', // [null, null]
   
          // multiple types 
          soo: 'type:[number,null,nonEmptyString]', // number, null, non empty string
   
         // number & integer 
          foo: 'required|type:number', // number (e.g. 1.2)
          aoo: 'type:int', // integer (e.g. 1)
          aoo: 'type:positiveInt', // > 0
   
          // date & datetime 
          too: 'type:datetime',  // yyyy-mm-dd hh:mm:ss (e.g. '2000-01-01 12:00:00')
          too: 'type:isoDatetime',  // yyyy-mm-ddThh:mm:ss+08:00 (e.g. '2000-01-01T12:00:00+08:00')
          too: 'type:date', // yyyy-mm-dd (e.g. '2000-01-01')
          too: 'type:yearMonthDay', // {year:1, month: 1, day: 1}
  
          // length: same length
          foo: 'sameLength:bar', // same length as bar (e.g. '123' and 'abc')
          foo: 'minLen:3', // min length  (e.g. '123')
          foo: 'maxLen:5', // max length  (e.g. '12345')
   
          // range
          foo: 'range:1,10', // 1 <= foo <= 10 (for int only)
    
          // requiredWhen
          foo: 'requiredWhen:boo', // required when boo is not empty  (e.g. 'foo' is required when 'boo' is not empty)
     
          // app types 
          koo: 'type:email', // email
          koo: 'type:hostname', // hostname (e.g. 'www.google.com')
          koo: 'type:hostnameWithPath', // hostname with path (e.g. 'www.google.com/path')
          koo: 'type:lineId', // line id (e.g. 'U1234567890abcdef1234567890abcdef')
          koo: 'type:twTaxId', // Taiwan tax id  (8 digits) (e.g. '12345678')
          koo: 'type:twMobileNo', // Taiwan mobile number (10 digits) (e.g. '0912345678')
          koo: 'type:twLandPhoneNo', // Taiwan land phone number (9 digits) (e.g. '022345678')
          koo: 'type:addressWithDefault', // address with default value (e.g. {city:1, area:1, street:'abc'})
     };
  
    const validatedData = { foo: 123, bar: 123, koo: '2000-01-01', loo: 'invalidValue', moo: '', aoo:'notArray'};
    let result = validator(rules)(validatedData);
    // => { validated: true ,  values:{foo:123, bar:123,koo:'2000-01-01'}}
    // => { validated: false ,
    //      errors: {
    //         foo: ['foo should be a number.'], 
    //         koo: ['koo should be a string.']
    //         loo: ['loo should be in one of the values: v1,v2,v3.']
    //         moo: ['moo should be an non empty string.']
    //         aoo: ['aoo should be in array format.']
    //      }
    //    }

Parser

• parseObj :: obj -> QueryString

  • convert an object to query string
  • example:

      parsrStr({a:'foo',b:'bar'})
      //=> a=foo&b=bar

• parseStr :: QueryString -> obj

  • convert a query string to an object
  • example:

      parsrObj('a=foo&b=bar')
      //=> {a:'foo',b:'bar'}

• convertKeyValue :: [a] -> obj (a: 'str=str')

  • convert a key-value array to an object

     convertKeyValue(['foo=bar', 'fiz=fuz']);
     //=> {foo:'bar', fiz:'fuz'}

• convertObjToArr :: obj -> [a] (a: 'str=str')

  • convert an object to a key-value array

     convertKeyValue({ foo: 'bar', fiz: 'fuz' });
     //=> ['foo=bar', 'fiz=fuz']

• snakeToCamel :: str -> str

  • convert a snake-string to camel-case string

     snakeToCamel('abc_def_ghi')
     //=> 'abcDefGhi'

• objKeyToCamel :: obj -> obj

  • convert all keys in an object from snake to camel string
  • nested object is supported

     objKeyToCamel({this_is_key: val})
     //=> {thisIsKey: val}

• camelToSnake :: str -> str

  • convert a camel-case string to snake-case string

     camelToSnake('abcDefGhi')
     //=> 'abc_def_ghi'

• objKeyToSnake :: obj -> obj

  • convert all keys in an object from camel to snake-case string
  • nested object is supported

     objKeyToSnake({ thisIsKey: 'someVal' })
     //=> { this_is_key: 'someVal' }

• parseCookie :: string -> obj

  • parse a cookie string to an object

     parseCookie('foo=bar ; equation=E%3Dmc%5E2;   asd=');
     //=> { foo: 'bar', equation: 'E=mc^2', asd: '' }

• serializeCookie :: obj -> string

  • serialize an object to cookie string

     serializeCookie({ foo: 'bar', equation: 'E=mc^2', asd: '' });
     //=> 'foo=bar;equation=E%3Dmc%5E2;asd='

time

• now :: null -> DateTime

      now();
      //=> current time

• isoStrToUtcStr:: isoDatetimeString -> utcDatetimeString

      isoStrToUtcStr('1997-07-16T19:20:35+03:00');
      //=> '1997-07-16 16:20:35'

• isoStrToTaipeiStr :: isoDatetimeString -> taipeiDatetimeString

     isoStrToTaipeiStr('1997-07-16T19:20:35+03:00');  // utc: 1997-07-16T16:20:35
     //=> '1997-07-17 00:20:35'

{
  // base
  Dayjs,
    now,

    // string to object
    toTimeObj,
    fromIsoTimeStrToObj,
    fromTimeStrAtTZ,
    fromTpeTimeStr,

    // datetime string
    utcDatetimeStrNow, // 2000-01-01 12:00:00
    isoStrNow,

    // string to string
    isoStrToUtcStr,    // 2000-01-01T12:00:00.000Z ->  2000-01-01 12:00:00
    utcStrToIsoStr,
    isoStrToTaipeiStr, // 2000-01-01T12:00:00.000Z ->  2000-01-01 20:00:00
    datetimeStrToDateStr, // 2000-01-01 12:00:00 -> 2000-01-01
    isoStrToTpeDateStr, // 2000-01-01T12:00:00.000Z -> 2000-01-01

    // date|datetime string
    dateAtTZ,
    todayStartInTpeStr,
    todayEndInTpeStr,
    todayEndInIsoStr,
    todayInTpeStrDateOnly,

    // time obj
    todayStartInTpe,
    todayEndInTpe,

    // type check
    isIsoFormat,

    // time zone
    TZ,
    TZ_TYPE,

    // comparison
    isBefore,
    isAfter,
    isBetween,
    isSame,

    // duration
    getDuration,

    // status
    getStatusByTimeFrame,
    STATUS_BY_TIME_FRAME,
    REF_TIME_STATUS_TYPE,

    // time manipulation
    minAgoFromNow,
}

array

• shuffle :: array -> array
  • re-order the array items randomly

hostname

• isValidHostname :: String -> Boolean
  • To validate a give hostname

Checker

  isTrue,
  isEmpty,
  isValidBool,
  isFunction,
  isUndefined,

  // object
  isObject,
  isEmptyObject,

  // string
  isString,
  isNonEmptyString,
  isNumberString,
  isEmptyString,
  isLowerCaseOrNumberString,
  isNumberOrString,
  isNumberOrNumberString,

  // number
  isIntBetween,
  isNumber,
  isValidInteger,
  isPositiveInteger,
  isUnsignedInteger,
  isSameNumOrNumStr,

  // number format
  ifOnlyNumberAndLetter,
  ifHexNumberStr,
  ifDecimalNumberStr,

  // time
  isDate,
  isDatetime,
  isIsoFormat,
  isIsoFormatWithZeroOffset,

  // array
  isArray,
  isEmptyArray,
  isNonEmptyArray,
  isArrayOfString,
  isArrayOfInt,
  isArrayOfArray, // [[], []]
  isArrayOfNumber,
  isArrayOfNull,

  // application
  isValidLineId,
  isValidEmail,
  isValidTwTaxId,
  isValidTwMobileNo,
  isValidTwLandPhoneNo,
  isValidTwNationalId,

  isValidHostname,
  isValidHostnameWithPath,

• isTrue :: a -> boolean

  • To check if a given value is true

• isEmpty :: a -> boolean

  • To check is a given value is empty

• isIntBetween:: int a -> int b -> int c -> boolean

  • To check is a given int or value is between the specified range

• isNumber:: a -> boolean

  • To check is given value is a number

• isString:: a -> boolean

  • To check is given value is a string

• isObject:: a -> boolean

  • To check is given value is an object
  • null and array are excluded

• isValidEmail:: a -> boolean

  • To check is given value is a valid email

• isValidBool:: a -> boolean

  • To check is given value is a valid boolean value

• isFunction:: a -> boolean

  • To check is given value a Function

• isValidHostname:: a -> boolean

  • To check if a given value a valid hostname

• isDate:: str a -> boolean

  • To check is given string is in date format
  • valid date format: yyyy-mm-dd (time is not included)

• isDateTime:: str a -> boolean

  • To check is given string is in datetime format
  • valid datetime format includes: unix time (integer), date+time, UTC

• isIsoFormat:: a -> boolean

  • To check is given value is in ISO 8601 format

• isIsoFormatWithZeroOffset:: a -> boolean

  • To check is given value is in ISO 8601 format with zero offset

Utils

• clearSpace:: string -> string

  • To clear or remove space in a string

• trim

  • To trim the string(s) in object properties and values
  • To trim string(s) in list
  • Can trim string(s) in nested objects or nested array

     trim({
        'p1  ': 'foo ',
        p2: ['  abc', ' def  '],
        p3: { p3_1: ['p31 '] },
        p4: { p4_1: ['p41 ', ' p42'], 'p4_2': {} },
        p5: 100,
       });
     //=> 
      {
        p1: 'foo',
        p2: ['abc', 'def'],
        p3: { p3_1: ['p31'] },
        p4: { p4_1: ['p41', 'p42'], 'p4_2' : {} },
        p5: 100,
      }

• extractByPath

  • To extract a value from a structured collection object

  • Object structure

     {
        k1: {
          k1a: {}
          k1b: {}
        },
        k2: {
          k2a: {}
          k2b: {}
        }
     }

  • example:

    extractByPath(['info', 'age'])({'person1':{info:{age:10}}, 'person2':{info:{age:20}}});
    //=>  {'person1':10, 'person2':20}

• getDirty

  • To get the values in new object which differ from that in the original object

  • The function is auto-curry

  • example:

   oriObj = {a:1, b:3}
   newObj = {a:1, b:5, c:7}
  
   getDirty(oriObj)(newObj);
    //=> {b:5, c:7}

• renameKey

  • To change a key name

  • example:

   oriObj = {foo:1}
  
   renameKey('foo','bar')(oriObj);
    //=> {bar:1}

• createEventEmitter

  • To create an event emitter

  • example:

  const em = createEventEmitter(); 
  
  // register event handler
  em.on('someEvent', someHandler); 
    
  // remove event handler 
  // A. remove specific handler
  em.remove('someEvent', someHandler); 
  // B. remove all handlers
  em.remove('someEvent'); 
    
  // send out event
  em.emit('someEvent', payload); 

• pluckObjProp

  • To pluck a nested obj prop

  • example:

    // Functor f => k -> {k:v} -> {k:v}
    const obj = {
                  prop1: { foo: 123, bar: 'abc' },
                  prop2: { foo: 999, bar: 'abc' }
          }
  
    pluckObjProp('foo')(obj)
  
    //=> {prop1: 123, prop2: 999}

• clean

  • To remove obj props if value is undefined/null/emptyString
  • Applicable to nested object

     clean({
        foo: 123,
        bar: undefined,
        koo: {
          k1: 'abc',
          k2: undefined,
        },
        poo: null,
        moo: '',
    })
     //=> { foo: 123, koo: { k1:'abc'} }

• cleanNilUndefined

  • To remove obj props if value is undefined/null
  • Applicable to nested object

     clean({
        foo: 123,
        bar: undefined,
        koo: {
          k1: 'abc',
          k2: undefined,
        },
        poo: null,
        moo: '',
    })
     //=> { foo: 123, koo: { k1:'abc'} moo: '' }

• hasValue

  • To check if an object has specified value
  • Applicable to simple object

     hasValue(123, { foo: 123 })
     //=> true
    
     hasValue('abc', { foo: 123 })
     //=> false 

• rmArrSquareInReqParamsKey

     harmArrSquareInReqParamsKeys(
        {
          from: 0,
          'ids[]': [ 'abc1705548556993', 'abc1705558802725']
        });
  
     //=> 
        {
           from: 0,
           'ids': [ 'abc1705548556993' , 'abc1705558802725']
         };

• getObjectDifference

    const obj1 = {
 a: 1,
 b: {
   c: 2,
   d: {
     e: 3,
   },
 },
 f: {
   g: 5,
 },
};

const obj2 = {
 a: 1,
 b: {
   c: 3,
   d: {
     e: 4,
   },
 },
};

getObjectDifference(obj1, obj2);

//=> 
{
 {
   'b.c'
 :
   [2, 3], 'b.d.e'
 :
   [3, 4], f
 :
   [{ g: 5 }, undefined]
 }

MoonUse

• useRetry

• useLock

• useWait

  • To make an action execution wait for a given time before execution

    useWait(1000, action);
    //=> wait for 1000ms, and then run action 
  - ```
  

• useRedisCache

  • To get value from redis cache, otherwise get the value and cache it

    const foo = await useCache('someCacheKey', getter, {keyLife:100});
    //=> keyLife: key有效時間 (in second)
  - ```
  

Model

• basicTypes

  YES_NO_TYPE,
  NULLABLE_YES_NO_TYPE,

  STRING_TYPE,
  NON_EMPTY_STRING_TYPE,
  NUMBER_OR_STRING_TYPE,
  NULLABLE_STRING_TYPE,

  INTEGER_TYPE,
  UNSIGNED_INTEGER_TYPE,
  NULLABLE_INTEGER_TYPE,
  POSITIVE_INTEGER_TYPE,
  NULLABLE_UNSIGNED_INTEGER_TYPE,

  BIG_INTEGER_TYPE,
  NULLABLE_BIG_INTEGER_TYPE,

  UNSIGNED_TINY_INTEGER_TYPE,

  NUMBER_TYPE,

  ARRAY_TYPE,
  ARRAY_OF_INT_TYPE,
  NULLABLE_ARRAY_TYPE,

  OBJECT_TYPE,
  NULLABLE_OBJECT_TYPE,

  FUNCTION_TYPE,
  NULLABLE_FUNCTION_TYPE,

- example
```
     Model.basicTypes.STRING_TYPE;
```

• datetimeTypes

  DATE_TYPE,
  NULLABLE_DATE_TYPE,

  DATETIME_TYPE,
  NULLABLE_DATETIME_TYPE,

  ISO_DATETIME_TYPE,
  NULLABLE_ISO_DATETIME_TYPE,

• appTypes

  EMAIL_TYPE,
  NULLABLE_EMAIL_TYPE,
  EMPTY_STRING_OR_EMAIL_TYPE,

  LINE_ID_TYPE,
  EMPTY_STRING_OR_LINE_ID_TYPE,

  CITY_TYPE,
  CITY_AREA_TYPE,

  MEDIA_TYPE,

  TW_TAX_ID_TYPE,
  NULLABLE_TW_TAX_ID_TYPE,
  TW_MOBILE_NO_TYPE,

  HOSTNAME_TYPE,
  NULLABLE_HOSTNAME_TYPE,
  EMPTY_STRING_OR_HOSTNAME_TYPE,

• appTypes.CITY_TYPE (台灣城市)

  • 結構: 整數 (城市編號)

  • properties:

    • validator
    • cityList (台灣城市清單)

  • 會檢查縣市是否為合法值

• appTypes.CITY_AREA_TYPE (台灣城市與區域)

  • 結構: {cityId: 1, areaId: 1}

  • properties:

    • validator
    • cityList (台灣城市清單)
    • areaList (台灣區域清單,含城市編號與區域號碼)

  • 會檢查縣市與區域的對應,是否為合法值

  • 城市與區域未定: {cityId:0, areaId:0}

  • 使用範例

   const someModelDef = {
     location: {
       type: CITY_AREA_TYPE,
     }
   }

• cityList內容

  const cityList = [
   { id: 0, name: '未定義' },
   { id: 1, name: '台北市' },
   ...
  ];

• areaList內容

  const areaList = [
    { id: 0, cityId: 0, name: '未定義', zip: 0 },
    { id: 1, cityId: 1, name: '中正區', zip: 100 },
    ...
  ];