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[ file->doWithClose ]

Method

The [file->doWithClose] method takes a block of code and executes it and it makes sure that the [file] object the method is called on closes the file. The file will be closed if there is an error as well as if the code block successfully runs.

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

}
Examples
  • Beginner

Display the contents of a file on a web page

The code below reads the contents of a file and outputs it to a web page encoding the line breaks as '<br>' tags

Code

local(my_file) = file('test.txt')
#my_file->doWithClose => {^
    encode_break(#my_file->readBytes->asString)
^}

Result

"Great Scott!"
"I know. This is heavy."

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