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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()
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        • tee()
        • throttleConcurrency()
        • throttleDataRate()
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        • to()
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        • watch()
      • Data
        • from()
        • Data()
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        • shift()
        • shiftTo()
        • shiftWhile()
        • size
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      • Hessian
        • decode()
        • encode()
      • JSON
        • decode()
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        • stringify()
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        • decode()
        • encode()
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        • LoadBalancer
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        • RoundRobinLoadBalancer
          • RoundRobinLoadBalancer()
          • next()
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        • URLRouter
          • add()
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        • hash()
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      • console
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      • crypto
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      • os
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        • readDir()
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      • pipy()
        • exit()
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      • stats
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          • set()
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        • Histogram
          • Histogram()
          • observe()
          • withLabels()
          • zero()
    • PipyJS
      • Language
      • Builtin Objects
      • NMI

    Data()

    Description

    Creates an instance of Data.

    The following options are supported for the encoding parameter:

    • "utf8" (default) - Encode the text as UTF-8
    • "hex" - Decode the text as hexadecimal representation
    • "base64" - Decode the text as Base64 format
    • "base64url" - Decode the text as Base64URL format

    When decoding is required but fails, a runtime error is generated to stop the script. This is different from Data.from() where null is returned to indicate the error.

    Syntax

    new Data()
    new Data(data)
    new Data(text)
    new Data(text, encoding)
    new Data(byteArray)

    Parameters

    new Data()

    Return Value

    An empty Data object.

    new Data(bytes)

    Creates an instance of Data from an array of bytes.

    bytes

    An array of numbers representing the bytes.

    Return Value

    A Data object containing the bytes from the array.

    new Data(text, encoding?)

    Creates an instance of Data from a string.

    text

    A string to encode or decode into bytes.

    encoding?

    Interpretation of the characters in the string. Valid options include:

    • "utf8" (default) - As a UTF-8 encoded string.
    • "hex" - As hexadecimal numbers.
    • "base64" - Base64 representation.
    • "base64url" - Base64url representation.
    Return Value

    A Data object converted from the string.

    new Data(data)

    Creates an instance of Data by copying bytes from another Data object.

    data

    A Data object to copy bytes from.

    Return Value

    A Data object copied from the other Data object.

    See Also


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