Mike Mike - 12 days ago 5
jQuery Question

Highchart.js - add custom key to series return undefined

I have added the custom key (total) to the series array of Highcharts, and when I tried to call the 'total' value from the series, it returns undefined, the other value like name, and data will get return except for the 'total' key which I added myself. Is there a way to work around this?

Pleas see the code below:

$(function () {
Highcharts.chart('container', {
title: {
text: 'Monthly Average Temperature',
x: -20 //center
},
subtitle: {
text: 'Source: WorldClimate.com',
x: -20
},
xAxis: {
categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun',
'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
},
yAxis: {
title: {
text: 'Temperature (°C)'
},
plotLines: [{
value: 0,
width: 1,
color: '#808080'
}]
},
tooltip: {
valueSuffix: '°C'
},
legend: {
layout: 'vertical',
align: 'right',
verticalAlign: 'middle',
borderWidth: 0
},
series: [{
name: 'Tokyo',
data: [7.0, 6.9, 9.5, 14.5, 18.2, 21.5, 25.2, 26.5, 23.3, 18.3, 13.9, 9.6],
total: 200
}, {
name: 'New York',
data: [-0.2, 0.8, 5.7, 11.3, 17.0, 22.0, 24.8, 24.1, 20.1, 14.1, 8.6, 2.5],
total: 300
}, {
name: 'Berlin',
data: [-0.9, 0.6, 3.5, 8.4, 13.5, 17.0, 18.6, 17.9, 14.3, 9.0, 3.9, 1.0],
total: 400
}, {
name: 'London',
data: [3.9, 4.2, 5.7, 8.5, 11.9, 15.2, 17.0, 16.6, 14.2, 10.3, 6.6, 4.8],
total: 500
}]
});

var series = $('#container').highcharts().series;
//var series_total = [];
$.each(series,function(index,value){
alert(value.total);
});

});


And on fiddle:
https://jsfiddle.net/7eb6vfdp/2/

Answer

Try alert(value.options.total);

edited fiddle

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