For example:
code = <<-EOH
bundle install
bundle exec unicorn -c /etc/unicorn.cfg -D
EOH
What does this code do? What is <<- called?
For example: code = <<-EOH bundle install bundle exec unicorn -c /etc/unicorn.cfg -D EOH
Share
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
For example:
code = <<-EOH
bundle install
bundle exec unicorn -c /etc/unicorn.cfg -D
EOH
What does this code do? What is <<- called?
It’s called heredoc. An easy way to define multiline strings which may include single or double quotes without needing to escape them.
See more here, for example.
Often you use heredocs to define large chunks of code. Some editors know about this and can highlight syntax for you there (if you specify language). Look: