RasmusGlenvig RasmusGlenvig - 1 month ago 15
Javascript Question

Getting weird error message from Highstock / Highcharts

I'm currently working with Highstock / Highcharts and I wan't to load data through a json file, that I have. When I'm trying to get the data it gives me this error message in the console that I haven't seen before:

highstock.js:456 Uncaught TypeError: f.data.slice is not a function


And I'm trying to get the json data through this function. I'm only getting this error message when im entering the url for my
data.json
:

$.each(names, function (i, name) {

var dataUrl = 'http://local.priceservice.dev/js/data.json';

$.getJSON(dataUrl, function (data) {

seriesOptions[i] = {
name: name,
data: data
};

// As we're loading the data asynchronously, we don't know what order it will arrive. So
// we keep a counter and create the chart when all the data is loaded.
seriesCounter += 1;

if (seriesCounter === names.length) {
createChart();
}
console.log(data)
});
});


I have never seen that message before and I've tried to search around, but I can't find someone that had the same issue as me.

Json:

{
"priceSeries": {
"2016-10-19T12:51:51.000Z": [[1451606400000, 18.0], [1454284800000, 19.0], [1456790400000, 17.0], [1456790400000, 15.0], [1459468800000, 15.0], [1462060800000, 15.0], [1464739200000, 15.0], [1467331200000, 15.0], [1470009600000, 15.0], [1472688000000, 15.0], [1475280000000, 15.0], [1477958400000, 15.0], [1480550400000, 15.0], [1483228800000, 15.0], [1485907200000, 15.0], [1488326400000, 15.0]],
"2016-11-19T12:51:51.000Z": [[1451606400000, 19.0], [1454284800000, 20.0], [1456790400000, 18.0], [1456790400000, 16.0], [1459468800000, 16.0], [1462060800000, 16.0], [1464739200000, 16.0], [1467331200000, 16.0], [1470009600000, 16.0], [1472688000000, 16.0], [1475280000000, 16.0], [1477958400000, 16.0], [1480550400000, 16.0], [1483228800000, 16.0], [1485907200000, 16.0], [1488326400000, 16.0]]
}
}


Highstock / Highcharts code:

$(function () {
var seriesOptions = [],
seriesCounter = 0,
names = ['MSFT', 'AAPL', 'GOOG'];
/**
* Create the chart when all data is loaded
* @returns {undefined}
*/
function createChart() {

$('#container').highcharts('StockChart', {

chart: {
zoomType: 'x'
},
legend: {
enabled: true
},

rangeSelector: {
buttons: [{
type: 'hour',
count: 1,
text: '1h'
}, {
type: 'day',
count: 1,
text: '1d'
}, {
type: 'week',
count: 1,
text: '1w'
}, {
type: 'month',
count: 1,
text: '1m'
}, {
type: 'year',
count: 1,
text: '1y'
}, {
type: 'all',
text: 'All'
}],
inputEnabled: false, // it supports only days
selected: 4 // all
},
yAxis: {
labels: {
formatter: function () {
return (this.value > 0 ? ' + ' : '') + this.value + '%';
}
},

plotLines: [{
value: 0,
width: 2,
color: 'silver'
}]
},

plotOptions: {
series: {
compare: 'percent',
showInNavigator: true
}
},

tooltip: {
pointFormat: '<span style="color:{series.color}">{series.name}</span>: <b>{point.y}</b> ({point.change}%)<br/>',
valueDecimals: 2,
split: true
},

series: seriesOptions
});
}

$.each(names, function (i, name) {

var dataUrl = 'http://local.priceservice.dev/js/data.json';

$.getJSON(dataUrl, function (data) {

seriesOptions[i] = {
name: name,
data: data
};

// As we're loading the data asynchronously, we don't know what order it will arrive. So
// we keep a counter and create the chart when all the data is loaded.
seriesCounter += 1;

if (seriesCounter === names.length) {
createChart();
}
console.log(data)
});
});
});


Thank you in advance! :)

Answer

Data in series has to be an array. The series requires at least one object with data in the format like this:

series: [{
   data: [...] // <- has to be an array
}]

Your series looks like this:

series: [{
   name: ...,
   data: { // <- you put an object instead of an array with points
      "priceSeries": ...
   }
}]

The code above causes that slice is call on object, like this

var someObj = {};
someObj.slice(); // Uncaught TypeError: someObj.slice is not a function(…)

You should go in this way: http://jsfiddle.net/r3xfxymm/1/