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write_file_with_write.rb

This Ruby code snippet demonstrates how to write a hash to a file in JSON format using the JSON module in Ruby.

The first line, require 'json', loads the JSON library into the current script, allowing us to use its functions for working with JSON data.

Next, we define a hash object hash with one key-value pair. The key is :key and the value is 'value'.

Then, we use the File.write() method to write the contents of the hash object to a file named input/json/file.json. We use the JSON.dump() method to convert the hash object to JSON format before writing it to the file.

Note that the path to the output file is specified as 'input/json/file.json', and the method uses the current working directory of the script as the base path for the file name. If you want to specify a different base path or use an absolute path, you can modify the path accordingly.

Ruby code snippet

require 'json'
#=> true

hash = {:key => 'value'}
#=> {key: "value"}

File.write('input/json/file.json', JSON.dump(hash))
#=> 15

Executed with Ruby 3.4.4.