Difference between revisions of "Text File Writer Assignment"
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=Background= | =Background= | ||
==Ensure== | ==Ensure== | ||
| − | + | Ruby provides begin/rescue/ensure which is rather analogous to try/catch/finally in Java. | |
| − | note: this | + | note: although coincidental, it is rather fitting that this reference covers [[https://ruby-doc.org/docs/ruby-doc-bundle/UsersGuide/rg/ensure.html begin/rescue/ensure] with ensuring to close an opened file as its example. Ensuring to close an opened file is the canonical example for this sort of feature. |
=Code To Implement= | =Code To Implement= | ||
Revision as of 05:05, 25 November 2022
Background
Ensure
Ruby provides begin/rescue/ensure which is rather analogous to try/catch/finally in Java.
note: although coincidental, it is rather fitting that this reference covers [begin/rescue/ensure with ensuring to close an opened file as its example. Ensuring to close an opened file is the canonical example for this sort of feature.
Code To Implement
open_yield_close
| file: | src/main/ruby/text_file_writer/text_file_writer.rb |  |
| class: | TextFileWriter | |
| superclass: | Object | |
| methods: | open_yield_close(path) |
Client
TextFileWriter.open_yield_close(path) do |file|
file.write("<html><body><h1>#{Time.now}</h1></body></html>")
end
