How do I access the array sum here?

Question

I have a data set that looks roughly like this:

var dataset = [
  // apples
  [{\"x\": 1, \"y\": 5 }, { \"x\": 2, \"y\": 4 }, { \"x\": 3, \"y\": 2 }, { \"x\": 4,         


        

Answer 1

d3.zip() comes in handy here, since you're manipulating data based on array index.

https://jsfiddle.net/guanzo/o8voyydx/2/

var result = dataset.map(d=>d.map(d=>d.y))
result = d3.zip.apply(undefined,result)
result = d3.max(result.map(d=>d3.sum(d)))
console.log(result )//83