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  • Pipy Documentation
  • Introduction
    • Overview
    • Concepts
  • Getting Started
    • Build and Install
    • Quick Start
    • Getting help
  • Release
    • Release History
      • 0.10.0-1
      • 0.22.0-31
      • 0.30.0
      • 0.50.0
  • Tutorial
    • Part 1: Hello
    • Part 2: Echo
    • Part 3: Proxy
    • Part 4: Routing
    • Part 5: Loading Balancing
    • Part 6: Configuration
    • Part 7: Plugins
  • Operating
    • Admin GUI
    • CLI
    • Pipy Repo
      • Introduction
      • Quick Start
      • Demo
      • REST API
    • Statistics
  • Reference
    • API
      • Configuration
        • acceptHTTPTunnel()
        • acceptProxyProtocol()
        • acceptSOCKS()
        • acceptTLS()
        • admin()
        • branch()
        • branchMessage()
        • branchMessageStart()
        • chain()
        • compress()
        • compressHTTP()
        • connect()
        • connectHTTPTunnel()
        • connectProxyProtocol()
        • connectSOCKS()
        • connectTLS()
        • decodeBGP()
        • decodeDubbo()
        • decodeHTTPRequest()
        • decodeHTTPResponse()
        • decodeMQTT()
        • decodeMultipart()
        • decodeRESP()
        • decodeThrift()
        • decodeWebSocket()
        • decompress()
        • decompressHTTP()
        • deframe()
        • demux()
        • demuxHTTP()
        • detectProtocol()
        • dummy()
        • dump()
        • encodeBGP()
        • encodeDubbo()
        • encodeHTTPRequest()
        • encodeHTTPResponse()
        • encodeMQTT()
        • encodeRESP()
        • encodeThrift()
        • encodeWebSocket()
        • exec()
        • exit()
        • export()
        • fork()
        • handleData()
        • handleMessage()
        • handleMessageBody()
        • handleMessageEnd()
        • handleMessageStart()
        • handleStreamEnd()
        • handleStreamStart()
        • handleTLSClientHello()
        • import()
        • insert()
        • link()
        • listen()
        • loop()
        • mux()
        • muxHTTP()
        • onEnd()
        • onStart()
        • pack()
        • pipeline()
        • print()
        • read()
        • repeat()
        • replaceData()
        • replaceMessage()
        • replaceMessageBody()
        • replaceMessageEnd()
        • replaceMessageStart()
        • replaceStreamEnd()
        • replaceStreamStart()
        • replay()
        • serveHTTP()
        • split()
        • task()
        • tee()
        • throttleConcurrency()
        • throttleDataRate()
        • throttleMessageRate()
        • to()
        • use()
        • wait()
        • watch()
      • Data
        • from()
        • Data()
        • push()
        • shift()
        • shiftTo()
        • shiftWhile()
        • size
        • toArray()
      • Hessian
        • decode()
        • encode()
      • JSON
        • decode()
        • encode()
        • parse()
        • stringify()
      • Message
        • body
        • head
        • Message()
        • tail
      • MessageEnd
        • MessageEnd()
        • payload
        • tail
      • MessageStart
        • head
        • MessageStart()
      • Netmask
        • base
        • bitmask
        • broadcast
        • contains()
        • decompose()
        • first
        • hostmask
        • ip
        • last
        • mask
        • Netmask()
        • next()
        • size
        • version
      • StreamEnd
        • error
        • StreamEnd()
      • URL
        • auth
        • hash
        • host
        • hostname
        • href
        • URL()
        • origin
        • password
        • path
        • pathname
        • port
        • protocol
        • query
        • search
        • searchParams
        • username
      • URLSearchParams
        • get()
        • getAll()
        • URLSearchParams()
        • set()
        • toObject()
      • XML
        • Node
          • attributes
          • children
          • name
          • Node()
        • decode()
        • encode()
        • parse()
        • stringify()
      • algo
        • Cache
          • clear()
          • get()
          • Cache()
          • remove()
          • set()
        • HashingLoadBalancer
          • add()
          • HashingLoadBalancer()
          • next()
        • LeastWorkLoadBalancer
          • LeastWorkLoadBalancer()
          • next()
          • set()
        • LoadBalancer
          • allocate()
          • LoadBalancer()
          • provision()
          • schedule()
        • LoadBalancerResource
          • free()
          • target
        • Quota
          • consume()
          • current
          • initial
          • Quota()
          • produce()
          • reset()
        • RoundRobinLoadBalancer
          • RoundRobinLoadBalancer()
          • next()
          • set()
        • URLRouter
          • add()
          • find()
          • URLRouter()
        • hash()
        • uuid()
      • console
        • debug()
        • error()
        • info()
        • log()
        • warn()
      • crypto
        • Certificate
          • issuer
          • Certificate()
          • subject
          • subjectAltNames
        • CertificateChain
          • CertificateChain()
        • Cipher
          • final()
          • Cipher()
          • update()
        • Decipher
          • final()
          • Decipher()
          • update()
        • Hash
          • digest()
          • Hash()
          • update()
        • Hmac
          • digest()
          • Hmac()
          • update()
        • JWK
          • isValid
          • JWK()
        • JWT
          • header
          • isValid
          • JWT()
          • payload
          • verify()
        • PrivateKey
          • PrivateKey()
        • PublicKey
          • PublicKey()
        • Sign
          • Sign()
          • sign()
          • update()
        • Verify
          • Verify()
          • update()
          • verify()
      • http
        • Agent
          • new()
          • request()
        • Directory
          • new()
          • serve()
      • logging
        • BinaryLogger
          • log()
          • BinaryLogger()
          • toFile()
          • toHTTP()
          • toStderr()
          • toStdout()
          • toSyslog()
        • JSONLogger
          • log()
          • JSONLogger()
          • toFile()
          • toHTTP()
          • toStderr()
          • toStdout()
          • toSyslog()
        • TextLogger
          • log()
          • TextLogger()
          • toFile()
          • toHTTP()
          • toStderr()
          • toStdout()
          • toSyslog()
      • os
        • env
        • readDir()
        • readFile()
        • stat()
        • unlink()
        • writeFile()
      • pipy()
        • exit()
        • load()
        • restart()
        • solve()
      • stats
        • Counter
          • decrease()
          • increase()
          • Counter()
          • withLabels()
          • zero()
        • Gauge
          • decrease()
          • increase()
          • Gauge()
          • set()
          • withLabels()
          • zero()
        • Histogram
          • Histogram()
          • observe()
          • withLabels()
          • zero()
    • PipyJS
      • Language
      • Builtin Objects
      • NMI

    PipyJS

    PipyJS is JavaScript without control flow and OOP (Object-Oriented Programming).

    In PipyJS, You can't write if or for statements or define user classes by inheritance. But you can write expressions for the engine to evaluate.

    It is equivalent to "purely functional" JavaScript, where everything is an expression. Those constructs that you are already familiar with in procedural programming, like branches and loops, all have their counterparts in PipyJS as well, only in a different style ⏤ the "functional" style.

    For more information about functional programming, please refer to Functional Programming on Wikipedia.

    For beginners and non-JS devs

    Before starting using PipyJS, please familiarize yourself to the standard JavaScript (ECMAScript) first. A good source of learning can be found at JavaScript on MDN.

    For JavaScript developers

    If you are already an experienced JavaScript developer, here're some useful topics discussing the differences between PipyJS and the standard JavaScript.


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