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39 lines
1.0 KiB
Markdown
39 lines
1.0 KiB
Markdown
# Create A CSV::Table Object
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When you parse a file or string using `CSV.parse` (with `headers = true`) you
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get a
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[`CSV::Table`](https://ruby-doc.org/stdlib-2.5.1/libdoc/csv/rdoc/CSV/Table.html)
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object in response. This object can be used to read what was in a file or it
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can be used to create a new file. It is also handy as a potential test object
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if you want to assume, but omit, file reading in a unit test.
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You can create a `CSV::Table` one of the following two ways. First, with a file:
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```ruby
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require 'csv'
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file = # read in file
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csv_table = CSV.parse(file, headers: true)
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```
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Second, with a string, or even better, a HEREDOC:
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```ruby
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require 'csv'
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csv_table =
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CSV.parse(<<-CSV, headers: true)
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first_name,last_name,taco
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Josh,Branchaud,"Al Pastor"
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Jake,Worth,Cauliflower
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CSV
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csv_table.headers
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#=> ["first_name", "last_name", "taco"]
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```
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From here, you can do what you need with it, whether that is using it in a test
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or writing it to a file.
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[source](https://ruby-doc.org/stdlib-2.6.3/libdoc/csv/rdoc/CSV.html#class-CSV-label-CSV+with+headers)
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