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Chart.js
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Getting Started
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Events
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Modes
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Elements
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Charts
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Line
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Bar
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Radar
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Doughnut & Pie
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Polar Area
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Bubble
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Scatter
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Area
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Mixed
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Axes
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Cartesian
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Category
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Linear
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Logarithmic
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Time
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Radial
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Linear
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Labelling
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Styling
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Developers
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Chart.js API
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Updating Charts
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Plugins
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New Charts
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New Axes
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Contributing
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Additional Notes
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Comparison Table
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Popular Extensions
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License
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< h1 id = "chartjs" > Chart.js< / h1 >
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< p > < a href = "https://chartjs-slack.herokuapp.com/" target = "_blank" > < img src = "https://img.shields.io/badge/slack-chartjs-blue.svg?style=flat-square&maxAge=3600" alt = "slack" > < / a > < / p >
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< h2 id = "installation" > Installation< / h2 >
< p > You can download the latest version of Chart.js from the < a href = "https://github.com/chartjs/Chart.js/releases/latest" target = "_blank" > GitHub releases< / a > or use a < a href = "https://cdnjs.com/libraries/Chart.js" target = "_blank" > Chart.js CDN< / a > . Detailed installation instructions can be found on the < a href = "getting-started/installation.html" > installation< / a > page.< / p >
< h2 id = "creating-a-chart" > Creating a Chart< / h2 >
< p > It' s easy to get started with Chart.js. All that' s required is the script included in your page along with a single < code > < canvas> < / code > node to render the chart.< / p >
< p > In this example, we create a bar chart for a single dataset and render that in our page. You can see all the ways to use Chart.js in the < a href = "getting-started/usage.html" > usage documentation< / a > < / p >
< pre > < code class = "lang-html" > < span class = "hljs-tag" > < < span class = "hljs-name" > canvas< / span > < span class = "hljs-attr" > id< / span > =< span class = "hljs-string" > " myChart" < / span > < span class = "hljs-attr" > width< / span > =< span class = "hljs-string" > " 400" < / span > < span class = "hljs-attr" > height< / span > =< span class = "hljs-string" > " 400" < / span > > < / span > < span class = "hljs-tag" > < /< span class = "hljs-name" > canvas< / span > > < / span >
< span class = "hljs-tag" > < < span class = "hljs-name" > script< / span > > < / span > < span class = "javascript" >
< span class = "hljs-keyword" > var< / span > ctx = < span class = "hljs-built_in" > document< / span > .getElementById(< span class = "hljs-string" > " myChart" < / span > ).getContext(< span class = "hljs-string" > ' 2d' < / span > );
< span class = "hljs-keyword" > var< / span > myChart = < span class = "hljs-keyword" > new< / span > Chart(ctx, {
type: < span class = "hljs-string" > ' bar' < / span > ,
data: {
labels: [< span class = "hljs-string" > " Red" < / span > , < span class = "hljs-string" > " Blue" < / span > , < span class = "hljs-string" > " Yellow" < / span > , < span class = "hljs-string" > " Green" < / span > , < span class = "hljs-string" > " Purple" < / span > , < span class = "hljs-string" > " Orange" < / span > ],
datasets: [{
label: < span class = "hljs-string" > ' # of Votes' < / span > ,
data: [< span class = "hljs-number" > 12< / span > , < span class = "hljs-number" > 19< / span > , < span class = "hljs-number" > 3< / span > , < span class = "hljs-number" > 5< / span > , < span class = "hljs-number" > 2< / span > , < span class = "hljs-number" > 3< / span > ],
backgroundColor: [
< span class = "hljs-string" > ' rgba(255, 99, 132, 0.2)' < / span > ,
< span class = "hljs-string" > ' rgba(54, 162, 235, 0.2)' < / span > ,
< span class = "hljs-string" > ' rgba(255, 206, 86, 0.2)' < / span > ,
< span class = "hljs-string" > ' rgba(75, 192, 192, 0.2)' < / span > ,
< span class = "hljs-string" > ' rgba(153, 102, 255, 0.2)' < / span > ,
< span class = "hljs-string" > ' rgba(255, 159, 64, 0.2)' < / span >
],
borderColor: [
< span class = "hljs-string" > ' rgba(255,99,132,1)' < / span > ,
< span class = "hljs-string" > ' rgba(54, 162, 235, 1)' < / span > ,
< span class = "hljs-string" > ' rgba(255, 206, 86, 1)' < / span > ,
< span class = "hljs-string" > ' rgba(75, 192, 192, 1)' < / span > ,
< span class = "hljs-string" > ' rgba(153, 102, 255, 1)' < / span > ,
< span class = "hljs-string" > ' rgba(255, 159, 64, 1)' < / span >
],
borderWidth: < span class = "hljs-number" > 1< / span >
}]
},
options: {
scales: {
yAxes: [{
ticks: {
beginAtZero:< span class = "hljs-literal" > true< / span >
}
}]
}
}
});
< / span > < span class = "hljs-tag" > < /< span class = "hljs-name" > script< / span > > < / span >
< / code > < / pre >
< h2 id = "contributing" > Contributing< / h2 >
< p > Before submitting an issue or a pull request to the project, please take a moment to look over the < a href = "https://github.com/chartjs/Chart.js/blob/master/docs/developers/contributing.md" target = "_blank" > contributing guidelines< / a > first.< / p >
< p > For support using Chart.js, please post questions with the < a href = "http://stackoverflow.com/questions/tagged/chartjs" target = "_blank" > < code > chartjs< / code > tag on Stack Overflow< / a > .< / p >
< h2 id = "license" > License< / h2 >
< p > Chart.js is available under the < a href = "http://opensource.org/licenses/MIT" target = "_blank" > MIT license< / a > .< / p >
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