Handle Multiple Charts

Terms defined: hidden input

Generalize what we built in the previous lesson
- Multiple charts, each with its own set of controls
server.py defines functions to create controls and placeholders for charts
- Whatever generates the page must create the right controls
- Whatever serves data must format it for the right kind of chart
Include a hidden input in the form tying it to its chart
- Passed to server and returned in data
- Used to select the chart element
static/dashboard.js has a new function displayAll(…)
- Find all forms with class controls and send default settings to server to cause initial display of charts

Run