fix d3 js (#1394)

psu-libraries · Mar 27, 2023 · d4bea48 · d4bea48
1 parent 6ccd465
commit d4bea48
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/app/javascript/frontend/scripts/view_statistics_chart.js b/app/javascript/frontend/scripts/view_statistics_chart.js
@@ -102,8 +102,8 @@ function drawChart (selection, data) {
   // Binary search function to look up closet data point to a given date
   const bisectDate = d3.bisector(row => row[0])
 
-  svg.on('mousemove click touchmove', function () {
-    const mouseCoords = d3.pointer(this)
+  svg.on('mousemove click touchmove', (event) => {
+    const mouseCoords = d3.pointer(event)
     const mouseDate = x.invert(mouseCoords[0])
     const [nearestDate,, nearestValue] = findNearestDataPoint(bisectDate, data, mouseDate)