how to use javascript global variable in google chart

Question

i have define variable globally in java script and want to use it in google chart, but it giving undefined error.

  var period;
$(document).ready(function () {

 $('#period').on('change', function () {
    window.period = this.value;
    alert(period);
   });
    // period variable in google chart is showing undefined
      google.charts.load('current', {
    callback: function drawChart() {
     var jsonData = $.ajax({
            type: 'GET',
            url: "{{ url('/datesalesbarchartdata') }}/" + period ,
            dataType: "json",
            global: false,
            async: false,
            success: function (jsondata) {

            }
        }).responseText;

Might the whole code be inside some other IIFE? Try assigning to just period, or refer to window.period inside drawChart (also, are you sure the chart starts being loaded after period is first defined?) — CertainPerformance
– CertainPerformance, Commented Nov 16, 2018 at 7:03
@CertainPerformance it works when i insert drawChart in period below i will share working code.Thanks You all for your help. — Rushiket More
– Rushiket More, Commented Nov 16, 2018 at 7:37

Rushiket More · Accepted Answer · 2018-11-16 07:39:45Z

1

Working code

     var period;
    $('#period').on('change', function () {
    window.period = this.value;

google.charts.load('current', {
    callback: function drawChart() {
        console.log(period);
       var jsonData = $.ajax({
            type: 'GET',
            url: "{{ url('/datesalesbarchartdata') }}/" + period ,
            dataType: "json",
            global: false,
            async: false,
            success: function (jsondata) {

            }
        }).responseText;
      });

answered Nov 16, 2018 at 7:39

Rushiket More

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