fixed onclick binding

frontend/frontend.js

@@ -1,7 +1,5 @@
 // All code in this file is licensed under the ISC license, provided in LICENSE.txt
-$('#update').click(function () {
+$('#update').click(updateData);
-  updateData();
-});
 // jQuery event binder
 
 function updateData () {
@@ -28,8 +26,8 @@ function graphSpectralData (obj, dom) {
     graphXTicks.push([i, specter[i]]);
   }
   const options = {
-    grid: {color: 'white'},
+    grid: { color: 'white' },
-    xaxis: {ticks: graphXTicks}
+    xaxis: { ticks: graphXTicks }
   };
   $.plot('#graph', [graphPoints], options);
   // flot expects an array of arrays (lines) of 2-element arrays (points)

frontend/index.html

@@ -25,11 +25,11 @@
   </div>
 
   <div class="container">
-    <button id="update" class="btn btn-primary">Get data</button>
+    <button id="update" onclick="updateData()" class="btn btn-primary">Get data</button>
     <button id="download" class="btn btn-primary">Download</button>
     <button id="debug" class="btn btn-danger">DEBUG</button>
   </div>
-  
+
   <div class="container">
     <div class="row">
     <div class="col-sm">