md`
- 10-2. How to interpret the results of 10-2 in console? I didn't know.
- 10-3. There shouldn't be any space between \`rect:\` and \`hover\`.
- 10-7.
- Why
\`svg.selectAll("g")
.data(dataset)
.enter()
.append("g")
.attr("x", (d, i) => xScale(i))\`
didn't work? Why do I have to use \`transform\`? **I didn't understand**.
- \`.attr("transform", (d, i) => "translate(...)")\`
`