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How to Create a JavaScript Chart with Chart.js

Learn how to Create a JavaScript Chart with Chart.js

If in case you have an information-rich web site or software, you would possibly need to visualize your information in order that customers can higher make sense of it. Though tables could be fairly helpful in sure instances corresponding to pricing and have comparability tables, different form of data is less complicated to course of with the assistance of some form of information visualization. JavaScript libraries corresponding to Chart.js allow you to generate several types of HTML5 charts corresponding to line, bar, pie, doughnut, and space charts.

Chart.js is a flexible library that allow you to create JavaScript charts in a few minutes. It has many choices with which you’ll configure all elements of your charts. On this tutorial, we’ll look into methods to arrange the Chart.js library, what your choices are, and what you possibly can obtain with it. We may also create two charts: a bar chart exhibiting life expectancy in six international locations and a doughnut/pie chart exhibiting the really helpful every day weight loss program.

Add Chart.js to Your HTML Web page

You possibly can install Chart.js in several methods. If you wish to retailer the whole library regionally, you possibly can set up it with the npm bundle supervisor utilizing the next command:

npm set up chart.js --save

When the module is put in, add the minified model to the underside of your HTML web page, earlier than the closing tag within the following approach:


Your customized script will go into the script.js file. Alternatively, it’s also possible to add the scripts to your web page utilizing module loaders corresponding to CommonJS or Webpack.

For those who don’t need to retailer the Chart.js library regionally, you possibly can add it from CDN utilizing the next code:


Or, you possibly can clone the newest model of Chart.js proper from the GitHub repo. Nonetheless, be aware that the GitHub repo doesn’t include a pre-built launch model, so you have to build the library into a single file by your self.

Set Up the HTML

With Chart.js, you possibly can add JavaScript charts to your HTML web page utilizing the ingredient. In your HTML file, add the next code contained in the tag (above the

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