lint: rename ax -> axKey

... to not confuse 'xa' & 'ya' with ax objects

Author: etpinard

src/components/fx/hover.js

@@ -839,7 +839,6 @@ function createHoverText(hoverData, opts, gd) {
 
     // show all the individual labels
 
-
     // first create the objects
     var hoverLabels = container.selectAll('g.hovertext')
         .data(hoverData, function(d) {
@@ -1055,7 +1054,7 @@ function createHoverText(hoverData, opts, gd) {
 // know what happens if the group spans all the way from one edge to
 // the other, though it hardly matters - there's just too much
 // information then.
-function hoverAvoidOverlaps(hoverLabels, ax, fullLayout) {
+function hoverAvoidOverlaps(hoverLabels, axKey, fullLayout) {
     var nummoves = 0;
     var axSign = 1;
     var nLabels = hoverLabels.size();
@@ -1064,10 +1063,13 @@ function hoverAvoidOverlaps(hoverLabels, ax, fullLayout) {
     var pointgroups = new Array(nLabels);
 
     hoverLabels.each(function(d, i) {
-        var axis = d[ax];
-        var axIsX = axis._id.charAt(0) === 'x';
-        var rng = axis.range;
-        if(!i && rng && ((rng[0] > rng[1]) !== axIsX)) axSign = -1;
+        var ax = d[axKey];
+        var axIsX = ax._id.charAt(0) === 'x';
+        var rng = ax.range;
+
+        if(!i && rng && ((rng[0] > rng[1]) !== axIsX)) {
+            axSign = -1;
+        }
         pointgroups[i] = [{
             datum: d,
             i: i,