Creating our workspace
We create our wrapper and learn about d3 selection objects.
Creating our workspace#
Now we're set up and ready to start updating our webpage!
To add elements to our page, we'll need to specify an existing element that we want to append to.
#wrapper element already populated in
index.html? One of d3's modules, d3-selection, has helper functions to select from and modify the DOM.
We can use
d3.select() , which accepts a CSS-selector-like string and returns the first matching DOM element (if any). If you're unfamiliar with CSS selector syntax, there are three main types of selectors: