Compatibility (original) (raw)
njs is created in compliance withECMAScript 5.1(strict mode) with someECMAScript 6and later extensions. The compliance is still evolving.
Definitions of njs specific properties and methods not compliant with ECMAScript can be found inReference. Definitions of njs properties and methods compliant with ECMAScript can be found inECMAScript specification.
What is currently supported
- Boolean values, numbers, strings, objects, arrays, functions, function constructors (0.3.6), and regular expressions
- ES5.1 operators, ES7 exponentiation operators
- ES5.1 statements:
break,catch,continue,do while,else,finally,for,for in,if,return,switch,throw,try,var,while, labeled statements (0.2.8) - ES6 statements:
let(0.6.0),const(0.6.0),async(0.7.0),await(0.7.0) Mathproperties:- ES6:
E,LN10,LN2,LOG10E,LOG2E,PI,SQRT1_2,SQRT2
- ES6:
Mathmethods:- ES6:
abs,acos,acosh,asin,asinh,atan,atan2,atanh,cbrt,ceil,clz32,cos,cosh,exp,expm1,floor,fround,hypot,imul,log,log10,log1p,log2,max,min,pow,random,round,sign,sin,sinh,sqrt,tan,tanh,trunc
- ES6:
Numberproperties:- ES6:
EPSILON,MAX_SAFE_INTEGER,MAX_VALUE,MIN_SAFE_INTEGER,MIN_VALUE,NEGATIVE_INFINITY,NaN,POSITIVE_INFINITY
- ES6:
Numbermethods:- ES6:
isFinite,isInteger,isNaN,isSafeInteger,parseFloat,parseInt
- ES6:
Numberprototype methods:Stringmethods:- ES5.1:
fromCharCode - ES6:
fromCodePoint
- ES5.1:
Stringprototype methods:Objectmethods:- ES5.1:
create(support without properties list),defineProperties(accessor descriptors support since 0.3.3),defineProperty(accessor descriptors support since 0.3.3),freeze,getOwnPropertyDescriptor,getOwnPropertyDescriptors(0.3.1),getOwnPropertyNames(0.3.1),getPrototypeOf,isExtensible,isFrozen,isSealed,keys,preventExtensions,seal - ES6:
assign(0.3.7) - ES8:
entries(0.2.7),values(0.2.7)
- ES5.1:
Objectprototype methods:Arraymethods:- ES5.1:
isArray - ES6:
of - ES13:
from(0.8.0),
- ES5.1:
Arrayprototype methods:ArrayBuffermethods (0.3.8):- ES6:
isView
- ES6:
ArrayBufferprototype methods (0.3.8):- ES6:
slice
- ES6:
Typed-arrayconstructors (0.3.8):- ES6:
Int8Array,Uint8Array,Uint8ClampedArray,Int16Array,Uint16Array,Int32Array,Uint32Array,Float32Array,Float64Array
- ES6:
Typed-arrayprototype methods (0.3.8):Buffermethods (0.4.4):Bufferprototype methods: (0.4.4):- compare,copy,equals,fill,includes,indexOf,lastIndexOf,readIntBE,
readInt8,readInt16BE,readInt32BE,readIntLE,readInt8,readInt16LE,readInt32LE,readUIntBE,readUInt8,readUInt16BE,readUInt32BE,readUIntLE,readUInt8,readUInt16LE,readUInt32LE,readDoubleBE,readDoubleLE,readFloatBE,readFloatLE,subarray,slice,swap16,swap32,swap64,toJSON,toString,write,writeIntBE,writeInt8,writeInt16BE,writeInt32BE,writeIntLE,writeInt8,writeInt16LE,writeInt32LE,writeUIntBE,writeUInt8,writeUInt16BE,writeUInt32BE,writeUIntLE,writeUInt8,writeUInt16LE,writeUInt32LE,writeDoubleBE,writeDoubleLE,writeFloatBE,writeFloatLE
- compare,copy,equals,fill,includes,indexOf,lastIndexOf,readIntBE,
Promisemethods (0.3.8):Promiseprototype methods (0.3.8):- ES6:
catch,finally,then
- ES6:
Functionprototype methods:- ES5.1:
apply,bind,call
- ES5.1:
RegExpprototype accessor properties:RegExpprototype methods:RegExpinstance properties:lastIndex
RegExpES9 named capture groups (0.3.2)DataViewprototype methods (0.4.4):- ES6:
getFloat32,getFloat64,getInt16,getInt32,getInt8,getUint16,getUint32,getUint8,setFloat32,setFloat64,setInt16,setInt32,setInt8,setUint16,setUint32,setUint8
- ES6:
Datemethods:- ES5.1:
now,parse,UTC
- ES5.1:
Dateprototype methods:- ES5.1:
getDate,getDay,getFullYear,getHours,getMilliseconds,getMinutes,getMonth,getSeconds,getTime,getTimezoneOffset,getUTCDate,getUTCDay,getUTCFullYear,getUTCHours,getUTCMilliseconds,getUTCMinutes,getUTCMonth,getUTCSeconds,toDateString,toISOString,toLocaleDateString,toLocaleString,toLocaleTimeString,toTimeString,toUTCString,setDate,setFullYear,setHours,setMinutes,setMilliseconds,setMonth,setSeconds,setTime,setUTCDate,setUTCFullYear,setUTCHours,setUTCMilliseconds,setUTCMinutes,setUTCMonth,setUTCSeconds
- ES5.1:
JSONmethods:- ES5.1:
parse,stringify
- ES5.1:
Symbolmethods (0.7.6):for,keyfor
- ES5.1
argumentsobject (0.2.5) - ES6 rest parameters syntax (without destructuring support) (0.2.7)
- ES5.1 global functions:
decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,isFinite,isNaN,parseFloat,parseInt - Global functions (0.7.6):atob,btoa
Errorobjects:Error,EvalError,InternalError,RangeError,ReferenceError,SyntaxError,TypeError,URIError- clearTimeoutandsetTimeoutfunctions (0.2.0)
File systemmethods:fs.accessSync(0.3.9),fs.appendFileSync,fs.closeSync,fs.existsSync(0.8.2),fs.FileHandle(0.7.7),fs.fstatSync(0.7.7),fs.lstatSync(0.7.1),fs.mkdirSync(0.4.2),fs.openSync(0.7.7),fs.promises.open(0.7.7),fs.readdirSync(0.4.2),fs.readFileSync,fs.readSync(0.7.7),fs.realpathSync(0.3.9),fs.renameSync(0.3.4),fs.rmdirSync(0.4.2),fs.symlinkSync(0.3.9),fs.unlinkSync(0.3.9),fs.writeFileSync fs.writeSync(0.7.7)fs.promisesAPI (0.3.9), asynchronous version of file system methods.- Crypto methods (0.2.0):crypto.createHash,crypto.createHmac
- Query Stringmethods (0.4.3):querystring.decode,querystring.encode,querystring.escape,querystring.parse,querystring.stringify,querystring.unescape
- TextDecodermethods (0.4.3):encoding,fatal,ignoreBOM,decode
- TextEncodermethods (0.4.3):encode,encodeInto
- XMLmethods (0.7.10):parse,xml.c14n,xml.exclusiveC14n
- zlibmethods (0.7.12):deflateRawSync,deflateSync,inflateRawSync inflateSync
- ES6 modules support: default
exportand defaultimportstatements (0.3.0) - ES6 arrow functions (0.3.1)
- Template literals: multiline strings, expression interpolation, nesting templates (0.3.2)
- Global objects (0.3.3):
- console(0.8.2):error,info,log,time,timeEnd,warn
- crypto(0.7.0):getRandomValues,subtle.encrypt,subtle.decrypt,subtle.deriveBits,subtle.deriveKey,subtle.digest subtle.exportKey(0.7.10),subtle.generateKey(0.7.10),subtle.importKey,subtle.sign,subtle.verify
globalThisalias (0.3.8),- njs:version,version_number(0.7.4),dump,memoryStats(0.7.8),on(0.5.2)
- process:argv,env,pid,ppid
- nginx object methods:
- HTTP Request:r.done(0.5.2),r.error,r.finish,r.internalRedirect,r.log,r.return(0.5.0),r.send(0.5.0),r.sendBuffer(0.5.2),r.sendHeader,r.setReturnValue(0.7.0),r.subrequest,r.warn
- Stream Session:s.allow(0.2.4),s.decline(0.2.4),s.deny(0.2.4),s.done(0.2.4),s.error,s.log,s.off(0.2.4),s.on(0.2.4),s.send(0.2.4),s.sendDownstream(0.7.8),s.sendUpstream(0.7.8),s.setReturnValue(0.7.0),s.warn
- Headers(0.5.1):append,delete,get,getAll,forEach,has,set
- Request(0.7.10):arrayBuffer,headers,json,text
- Response(0.5.1):arrayBuffer,headers,json,text
- ngx(0.5.0):fetch(0.5.1),log
- ngx.shared(0.8.0):add,clear,delete,freeSpace,get,has,incr,items,keys,pop,replace,set,size
- nginx object properties:
- HTTP Request:r.args,r.headersIn,r.headersOut,r.httpVersion,r.internal,r.method,r.parent,r.rawHeadersIn(0.4.1),r.rawHeadersOut(0.4.1),r.rawVariables(0.5.0),r.remoteAddress,r.requestBuffer(0.5.0),r.requestText,r.responseBuffer(0.5.0),r.responseText(0.5.0),r.status,r.uri,r.variables(0.2.8)
- Stream Session:s.remoteAddress,s.rawVariables(0.5.0),s.status(0.5.2),s.variables(0.2.8)
- Periodic Session(0.8.1):PeriodicSession.rawVariables,PeriodicSession.variables
- Request(0.7.10):bodyUsed,cache,credentials,method,mode,url
- Response(0.5.1):bodyUsed,ok,redirected,status,statusText,type,url
- ngx(0.5.0):build(0.8.0),conf_file_path(0.8.0),conf_prefix(0.7.8),error_log_path(0.8.0),prefix(0.8.0),version(0.8.0),version_number(0.8.0),worker_id(0.8.0)
- ngx.shared(0.8.0):capacity,name,type