B. Clay Shannon B. Clay Shannon - 2 months ago 7
HTML Question

Why is my Line Chart not displaying (Chart.JS)?

I'm displaying a pie chart and a bar chart, but my line chart, with the same type of code, does not display, and I wonder why. Here is my code:

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.1.3/Chart.js"></script>
. . .
<canvas id="forecastLineChart"></canvas>


JQUERY

var lineChartData = {
labels: [
"APPLES, GALA WAXF 138", "APPLES, GOLDEN DELICIOUS WAX
100", "APPLES, GOLDEN DELICIOUS WAXF 113"
],
datasets: [
{
fillColor: "rgba(220,220,220,0.5)",
strokeColor: "rgba(220,220,220,0.8)",
highlightFill: "rgba(220,220,220,0.75)",
highlightStroke: "rgba(220,220,220,1)",
data: [49, 46, 153.86]
},
{
fillColor: "rgba(151,187,205,0.5)",
strokeColor: "rgba(151,187,205,0.8)",
highlightFill: "rgba(151,187,205,0.75)",
highlightStroke: "rgba(151,187,205,1)",
data: [52, 40, 65.00]
},
{
fillColor: "rgba(120,240,180,0.5)",
strokeColor: "rgba(120,240,180,0.8)",
highlightFill: "rgba(120,240,180,0.75)",
highlightStroke: "rgba(120,240,180,1)",
data: [42, 42, 227.70]
}
]
}
var ctxLineChart = $("#forecastLineChart").get(0).getContext("2d");
var forecastImpactLineChart = new Chart(ctxLineChart).Line(lineChartData);

Answer

The syntax to define a chart has changed a bit in version 2. Fiddle.

var forecastImpactLineChart = Chart.Line(ctxLineChart, {
    data: lineChartData
});

OR

var forecastImpactLineChart = new Chart(ctx, {
    type: 'line',
    data: lineChartData,
    options: options
});