### 7.2.1 From Day 34

• 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.

• .attr("transform", (d, i) => "translate(...)")

• Why didn’t the following work? Why did I have to use transform? I didn’t understand.

svg.selectAll("g")
.data(dataset)
.enter()
.append("g")
.attr("x", (d, i) => xScale(i))
• I tried the Scott Murray’s codes implementing SVG element tooltips, but they didn’t work. Here is the solution to this problem.