rails new <project_name> -d postgresql --skip-turbolinks --skip-spring -T-d postgresql sets up the project to use PostgreSQL--skip-turbolinks & --skip-spring creates a project that does not use turbolinks or spring-T skips the creation of the test directory and use of Test::Unit
#Make a heat map graphic with D3.js
This gist contains the code to create a simple "heat map" with D3.js. In this case, the "heat map" is a graph showing activity distributed over the days of the week on one axis and the weeks of the year on the other.
This gist is meant to be used as part of a workshop where the code is uncommented as the workshop progresses.
It could also be used as a puzzle outside of a workshop: follow the clues to reconstruct the correct code and make it work!
In the end, the chart should look something like this:
##Hello World My code: here
Responder #1 (here) - This person took the same approach but did not use the ternary operator. She used a single if statements to handle the situation where input was provided. There are two return statements - one on the if and one without a condition.
Responder #2 (here) - This person used a memoization type technique to handle whether input was provided or not. This is a valid approach, but is less intuitive (imo) than using a conditional.
Responder #3 (here) - I like the classical use of the if/else in this response. I think it's the most intuitive. I think the use of .length on the input is superfluous.
Responder #4 (here) - t
<input type='text' name='task[title]' value="<%= @task.title %>"/>.