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This article introduces the knowledge of "what are the useful Js chart libraries?". In the operation of actual cases, many people will encounter such a dilemma. Next, let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

D3.js

D3.js is a graphic JavaScript library with many functions and is very powerful. You can use it to make data-driven transformations to documents and then bind arbitrary data to DOM.

D3 is an excellent chart library. It has some smaller technical modules, such as color, axis, outline, hierarchical structure, polygon, ease and so on. This also means that you need to learn a lot of knowledge to make good use of it, it is not easy to get started.

Even using it to create a simple chart can require complex steps. You need to clearly define all elements, including chart items and axes. It provides some examples to show you how to use CSS to style chart elements. Developers cannot automatically apply chart-based functionality.

If you want to design complex diagrams from scratch and control all the elements exactly as you want, then this library is your first choice. But if time is tight, it may not be a good idea to address the requirements of the data visualization project from scratch.

As a chart library, D3.js can act as a building block. Developers can use D3 to work with solutions such as NVD3. This chart library is completely free and open source.

Highcharts

Highcharts is one of the popular JavaScript chart libraries in the market, and it has been adopted by many large companies. To provide IE6-to-IE8 compatibility, it first uses SVG and then turns to VML to generate charts. Its sample diagram has some great features, but it doesn't look very attractive. There are many API documentation tutorials and related topics in its documentation.

Its API is easy to use, and developers can use configuration options to develop charts. For personal and non-commercial use, Highcharts is available free of charge; uses such as the securities industry require commercial licenses, while Gantt charts and maps require separate licenses.

Chart.js

Chart.js is an open source JavaScript library that supports eight types of charts. It has only 60kb, which is a very small JS library. The chart types it supports include radar, inline chart, pie chart, bar chart, scatter chart, area chart, bubble and mixing, etc. It also supports time series. At the rendering level, it uses the canvas element and adjusts the zoom ratio in response to window size. It is backward compatible with IE9. You can also use Polyfills if you want to be IE7 compatible.

You can also see the initial modern animation when you use its example for the first time. There is a smooth animation effect when adding data points or sequences in real time. You can call the update () function to modify the chart options and redraw the chart.

The sample source code is not shown on its website, but can be found in the GitHub repository. Its API is simple and intuitive. Users use configuration options to create and modify charts. Its documentation is informative, with tutorials on code snippets and properties API.

This library can be used for commercial and personal use free of charge. It's an open source project. But for higher-level requirements, it may provide a small number of chart types.

AmCharts

AmCarts has launched version 4 and has a long history. This version supports the SVG animation engine, which helps developers create movie-level scenes.

Its sample diagram is very beautiful, and most of the examples provide a slider UI, along with a number of regulators that can adjust the chart in real time. Its documentation includes a complete description of the API properties and many tutorials. It provides a declarative API to create charts, which is slightly different from the configuration-based approach. It has a good code completion feature, but requires a little more code when configuring the chart. AmCharts's watermark version of the chart is free, and you have to pay to remove the watermark.

Google Chart

Google Chart is powerful and easy to use. The sample chart is simple and easy to read. Many chart types can be found in its chart library and extension library. You can view more chart types from the cascading menu.

Each chart type comes with dynamic examples and special tutorials that are easy to understand. These tutorials come with API lists and contain code for related functions. It provides a very pleasant entry experience for newcomers.

Users can use the configuration options object to customize the chart. The DataTable class is used to populate datasets and can also be used in all diagrams. Each chart type comes with options listed in a unique way and corresponding tutorials. There are many options for different types, and attribute naming is standardized.

Google Charts can be used for free, but there are some limitations. It is a Web service and cannot be hosted locally. Google has also retired a lot of API, so it is not suitable for use in key projects.

ZingChart

There are many chart types in ZingChart that can be integrated with frameworks such as react and angular. It has a series of powerful features and many custom options.

Its sample chart has many style themes, some of which look good. There are also many options for adding styles. The sample chart does not cover all the chart types it supports.

Its documentation comes with a number of functional tutorials that cover all types of charts and all API. ZingChart uses configuration options to customize the chart. There are many property settings in the example, such as font style, and so on. However, these examples with property settings may confuse users as to what settings the chart needs.

The watermark version of ZingChart can be used free of charge. There is no watermark in the paid version.

FushionCharts

FusionCharts started as a Flash-based chart plug-in with a long history. It is a robust chart visualization library that provides support for modern browsers, supports many data formats, including JavaScript, JSON, and XML, and is compatible with IE6. It also supports many server-side programming languages and JavaScript frameworks.

Its chart library comes with many examples that look simple and generous. Its documentation has many good API descriptions, and there are examples for each chart type. Users can configure properties in groups through tasks and chart functions.

Users create charts using configuration-based options, which is very easy to use. When you delve deeper into API, you will find that the list of attributes becomes very long. Configuration properties such as showAlternateHGridColor and chartLeftMargin are easy to understand. There is room for improvement in its code completion function.

The watermark version of FusionCharts is available for free use by individuals. Commercial and non-watermarked versions are charged.

Flot

Flot is the best pure JavaScript drawing library because of its simple use, beautiful appearance and rich interactive functions. It is effectively compatible with all new browsers, including Internet Explorer 6 +, Chrome, Firefox 2 +, Safari 3 + and Opera 9.5 +. It is the most popular and longest history chart library. Flot supports lines, points, filled areas, bars, and their various combinations.

How Flot works is to create a placeholder div that can be put into the chart.

Sigmajs

This product can be used to create some beautiful graphics to display the network on Web and to show a simple interactive network in large Web applications; this interactive network has the ability to explore dynamically. It works well for both beginners and advanced users.

It comes with some exciting features, such as the Canvas and WebGL renderers, as well as mouse and touch support to help you make better dynamic web applications.

Sigmajs is configurable by default, supports mouse and touch interaction, and can be scaled and displayed according to the size of the container. It also has custom rendering, and you can use a set of tools and settings to customize the details of the network interaction.

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