borisyankov/DefinitelyTyped — pull request #284 by Steve-Fenton (2013-02-15 09:58:05+00:00)
Title: Update highcharts/highcharts.d.ts

A problem was files on Stack Overflow about the yAxis definition and I checked the documentation here: http://api.highcharts.com/highcharts#yAxis

It looks like the yAxis should be a single HighchartsAxisOptions object, not an array.