keeps the scope of the loop clean to the block of forEach's scope. allows you to do something with each value in the array. re-use rhe array's values within the forEach loop without changing the ...

Our host, Amber, will be taking us through forEach loops, the fattiest of fat arrow notation, and the extraterrestrial world of d3.select. Amber: Welcome back to my repo, Amber's Data Domain! I won't ...