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Represents one of the following file flags. A convenience object.

  • 'r' - Open file for reading. An exception occurs if the file does not exist.
  • 'r+' - Open file for reading and writing. An exception occurs if the file does not exist.
  • 'rs' - Open file for reading in synchronous mode. Instructs the filesystem to not cache writes.
  • 'rs+' - Open file for reading and writing, and opens the file in synchronous mode.
  • 'w' - Open file for writing. The file is created (if it does not exist) or truncated (if it exists).
  • 'wx' - Like 'w' but opens the file in exclusive mode.
  • 'w+' - Open file for reading and writing. The file is created (if it does not exist) or truncated (if it exists).
  • 'wx+' - Like 'w+' but opens the file in exclusive mode.
  • 'a' - Open file for appending. The file is created if it does not exist.
  • 'ax' - Like 'a' but opens the file in exclusive mode.
  • 'a+' - Open file for reading and appending. The file is created if it does not exist.
  • 'ax+' - Like 'a+' but opens the file in exclusive mode.

Exclusive mode ensures that the file path is newly created.

Hierarchy

  • FileFlag

Index

Constructors

constructor

  • new FileFlag(flagStr: string): FileFlag
  • This should never be called directly.

    throw

    when the mode string is invalid

    Parameters

    • flagStr: string

    Returns FileFlag

Methods

getFlagString

  • getFlagString(): string

isAppendable

  • isAppendable(): boolean

isExclusive

  • isExclusive(): boolean

isReadable

  • isReadable(): boolean

isSynchronous

  • isSynchronous(): boolean
  • Returns true if the file is open in synchronous mode.

    Returns boolean

isTruncating

  • isTruncating(): boolean

isWriteable

  • isWriteable(): boolean

pathExistsAction

  • Returns one of the static fields on this object that indicates the appropriate response to the path existing.

    Returns ActionType

pathNotExistsAction

  • Returns one of the static fields on this object that indicates the appropriate response to the path not existing.

    Returns ActionType

Static getFileFlag

  • getFileFlag(flagStr: string): FileFlag
  • Get an object representing the given file flag.

    throw

    when the flag string is invalid

    Parameters

    • flagStr: string

    Returns FileFlag

    The FileFlag object representing the flag

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