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[ file->openAppend ]

Method

The [file->openAppend] method can be called on a [file] object to open a file for appending and reading the file. If a path is already stored in the [file] object, it can be called with no parameters. It can also be called with a string specifying the path to a file. If it is called with a path to a file, that new path becomes the path for the [file] object, overriding any previous path.

If [file->openAppend] is called with a file path, it can also take an optional boolean parameter that specifies whether or not to create the file if it doesn't already exist. The default is true which means the file will be created if it does not already exist.

  • Syntax
local(f) = file(...)
#f->openAppend

local(f) = file
#f->openAppend('/path/to/file.txt')

local(f) = file
#f->openAppend('/path/to/file.txt', false)
Examples
  • Beginner

Add a line to the end of a file

The code below will add the line "Great Scott!" to the end of the file "test.txt"

Code

local(my_file) = file
handle => {#my_file->close}
#my_file->openAppend('test.txt')
#my_file->writeString('\n"Great Scott!"')

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