### How-to
+To install dependencies, run
+
+ npm install
+
To build dygraphs, run
npm run build
in your browser. You can use the Mocha UI to run just a single test or suite.
Or you can change `it` to `it.only` to do run just one test in code.
+To run a single test from the command line, you can use:
+
+ npm run test -- --grep highlight-series-background
+
+(Note the extra `--`.)
+
### dygraphs style
When making a change, please try to follow the style of the existing dygraphs code. This will make the review process go much more smoothly.