seeker105/Intro_to_sinatra_check.md

## Intro_to_sinatra_check.md

      
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    Introduction to Sinatra

1. What is the purpose of the server file (routing)?

The server file acts as the executable code. It processes the incoming HTTP message and generates the
correct output to return to the user.
2. How do you pass variables into the views?

You declare an instance variable. When the server file is executed it inherits the current state, including
the instance variables.
OR create a hash called :locals with the local variables you want to pass in. Pass the locals hash to the erb
method as an argument, along with the erb filename.
3. How can we interpolate ruby into a view (html)?

Using the Ruby interpolation tags: <%= %> and <% %>. The tag with the equals sign will display
its result, while the tag w/o the = will just execute the logic.
4. In what format does data come in from a view/form? What do we call it?

It comes in as a hash called 'params' where the keys are the names of the data fields and
the values are the data elements entered into the fields.
5. What are params?

'params' are the data elements collected using a form and passed using an HTTP message.