In modern mobile application development, data visualization is a crucial part. Chart libraries play a key role in React Native applications, helping developers present and analyze data visually. There are many excellent chart libraries available in the React Native ecosystem. In this article, we will compare three popular chart libraries in the React Native community. Let's begin this comparative journey to delve into the differences between React Native ECharts, Victory Native, and React Native Chart Kit. Chart Library Introduction React Native Chart Kit was developed in 2018, it has been 5 years since its inception. With a cumulative download count of 2,840,757, it has garnered 2.5k+ stars on GitHub. It has become a highly popular library in the React Native community. React Native Chart Kit Victory Native is a chart library that was developed in 2015. It has been 7 years since its inception. With a high cumulative download count of 7,434,044, it has garnered an impressive 10.3k+ stars on GitHub. It is the longest-standing and most widely used chart library in the history of React Native. Victory Native React Native ECharts is a newly released chart library this year. It currently has 2,565 downloads and has received 363 stars on GitHub. As a rising star among React Native chart libraries, it holds great potential. With time, it is believed that will become one of the most popular chart libraries. React Native ECharts React Native ECharts Here is the comparison table for the basic data: React Native Chart Kit Victory Native React Native ECharts Creation Date 2018 2015 2023 Downloads 2,840,757 7,434,044 2565 Unpacked Size 399kB 78.4kB 169kB Github star 2.5k+ 10.3k+ 363 Last publish a year ago a month ago a month ago Comparison of Basic Principles The main approach is to utilize React Native's native view components to create the basic structure and layout of the charts, such as View, Text, etc. Additionally, libraries like react-native-svg and paths-js are used for rendering the charts with vector graphics. React Native Chart Kit also relies on React Native's native views combined with SVG for rendering. It also draws inspiration from D3 (Data-Driven Documents) by mapping data to chart elements and using scales to transform data values and positions. Victory Native fetches the SVG graphic data of ECharts charts and rewrites the SVGPainter of ECharts. By utilizing the existing chart data of ECharts, it renders the charts on the React Native side using either react-native-svg or react-native-skia. React Native ECharts Code Writing Comparison Let's take the commonly used area chart as an example. Now, let's see how they are implemented using the following code snippets: React Native Chart Kit import { LineChart } from"react-native-chart-kit"; import { StyleSheet, View, Text } from 'react-native'; const chartConfig = { backgroundGradientFrom: "#fff", backgroundGradientFromOpacity: 0, backgroundGradientTo: "#fff", backgroundGradientToOpacity: 0.5, color: (opacity = 1) => `rgba(14, 17, 22, ${opacity})`, strokeWidth: 2, // optional, default 3 barPercentage: 0.5, useShadowColorFromDataset: false // optional }; export const LineChart1 = props => { const data = { labels: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'], // labels: props.date, datasets: [ { data: [150, 230, 224, 218, 135, 147, 260], // color: (opacity = 1) => `rgba(134, 65, 244, ${opacity})`, // optional strokeWidth: 2 // optional } ], }; return ( <View style={styles.container}> <Text>React Native Chart Kit</Text> <LineChart data={data} width={400} height={200} yAxisInterval={1} animate chartConfig={chartConfig} withDots={false} /> </View> ) } Victory Native import { StyleSheet, View, Text } from "react-native"; import { VictoryArea, VictoryChart, VictoryLine, VictoryTheme, VictoryScatter, } from "victory-native"; export const LineChart2 = props => { const data = [ { x: 'Mon', y: 150 }, { x: 'Tue', y: 230 }, { x: 'Wed', y: 224 }, { x: 'Thu', y: 218 }, { x: 'Fri', y: 135 }, { x: 'Sat', y: 147 }, { x: 'sun', y: 260 }, ]; return ( <View style={styles.container}> <Text style={styles.title}>Victory Native</Text> <VictoryChart theme={VictoryTheme.material} height={250} width={400} > <VictoryArea style={{ data: { fill: "rgba(230, 231, 231,0.8)" } }} data={data} animate={{ duration: 2000, onLoad: { duration: 1000 }, }} /> <VictoryLine data={data} style={{ data: { stroke: "#d6d6d7", strokeWidth: 2 } }} /> <VictoryScatter data={data} size={4} style={{ data: { fill: "#24262a" } }} /> </VictoryChart> </View> ); }; React Native ECharts import { StyleSheet, Text, View } from 'react-native'; import { useRef, useEffect } from 'react'; import * as echarts from 'echarts/core'; import { LineChart } from 'echarts/charts'; import { GridComponent } from 'echarts/components'; import { SVGRenderer, SkiaChart } from '@wuba/react-native-echarts'; echarts.use([SVGRenderer, LineChart, GridComponent]); export const LineCharts = props => { const skiaRef = useRef(null); useEffect(() => { const option = { xAxis: { type: 'category', data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'], splitLine: { show: true, lineStyle: { type: 'dashed', },} }, yAxis: { type: 'value', min: 'dataMin', splitLine: { show: true, lineStyle: { type: 'dashed', },} }, series: [ { data: [150, 230, 224, 218, 135, 147, 260], type: 'line', areaStyle: { color: 'rgba(230, 231, 231,0.8)' }, lineStyle: { color: '#d6d6d7' }, symbol: 'circle', symbolSize: 8, itemStyle: { color: '#24262a', }, }, ], }; let chart; if (skiaRef.current) { chart = echarts.init(skiaRef.current, 'light', { renderer: 'svg', width: 400, height: 300, }); chart.setOption(option); } return () => chart?.dispose(); }, []); return ( <View style={styles.container}> <Text style={styles.title}>React Native ECharts</Text> <SkiaChart ref={skiaRef} /> </View> ); } The effect is displayed as follows: From a code-writing perspective, is data-driven, so you typically pass in data and configure related styles through props. Most importantly, it acts more like a set of tools that you can DIY. You can use various components exposed by Victory to customize the charts according to your needs. For example, if you want to add a line and data points to the area chart, you would need to additionally include VictoryLine and VictoryScatter components. Victory Native React Native Echarts and are similar in usage. Both libraries centralize data and styles within the configuration options. They are more like fully featured tools that allow you to transform the charts by modifying the configurations. Comparatively, the configuration code for is simpler, but it may lack some advanced customization options. For example, enabling animation or setting a specific starting value for the y-axis might not be achievable. React Native Chart Kit React Native Chart Kit In terms of writing code, I prefer the configuration-based approach. It is straightforward, easy to grasp, and can improve development efficiency for developers. Development Experience Comparison of Rendering Performance When it comes to regular charts such as area, bar, and pie charts, all three libraries perform well with small datasets, providing smooth rendering. However, as the data size reaches the order of thousands, noticeable performance differences become apparent. and experience significant lags and, in the case of larger datasets, Victory may even crash. On the other hand, benefits from ECharts' default data sampling mechanism, which reduces the number of data points when rendering large amounts of data. This helps avoid overcrowding the chart and performance degradation. ECharts automatically sample a relatively small number of data points based on the width of the plotting area and the number of data points, reducing computational and rendering time. Victory Native React Native Chart Kit React Native ECharts Leveraging this mechanism, demonstrates significantly better rendering performance when dealing with large datasets. React Native ECharts Here is an example of rendering an area chart using randomly generated 200 data points: As we can see, still maintain relatively good rendering performance. On the other hand, adjustments to data and coordinates are required when using the other two libraries to meet specific business requirements. React Native ECharts When we increase the test data to 2000 points, exhibits noticeable rendering lag, while throws an error stating Maximum call stack size is exceeded. Meanwhile, , benefiting from data sampling, still deliver satisfactory rendering results: React Native Chart Kit Victory Native React Native ECharts Comparison of Chart Variety Currently, supports a relatively limited number of chart types. It mainly covers six specific types of charts, which can fulfill most basic business requirements. However, if there is a need for other types of charts, additional libraries may need to be introduced. React Native Chart Kit React Native Chart Kit The following image shows most of the chart types that can cover, and it can be seen that the variety is relatively limited. 😭 Currently, the developers are continuously maintaining the library and may add more chart types in the future. React Native Chart Kit When it comes to chart variety, offers a greater range compared to . However, due to the nature of Victory's approach, which involves assembling components to create different types of charts, developers need to have a good understanding of component composition and possess solid coding skills. Additionally, the examples provided on the official Victory website may not be beginner-friendly, as the supported chart instances may not be immediately intuitive. Overall, using requires a higher level of coding proficiency and logical thinking. Victory Native Victory Native React Native Chart Kit Victory Native The following image showcases the main components provided by Victory on their official website. It can be observed that there are significantly more options available compared to . Moreover, primarily relies on combining these components, such as points, lines, areas, and axes, to create various types of charts. This allows for a broader range of supported chart types. React Native Chart Kit Victory Native You can directly refer to the examples on the ECharts official website, where various types of charts are showcased in a highly intuitive manner. Developers can use the configuration options to customize the charts according to their needs. Currently, supports rendering most of the chart types that ECharts offers. React Native ECharts React Native ECharts utilizes the SVG data from ECharts, which means users can render a wide range of different chart types by simply following the examples provided on the ECharts website and configuring their settings😍 React Native ECharts The following image showcases some chart types that cannot be easily implemented or require complex combinations using other libraries. However, with , you can effortlessly achieve these charts by referring to the documentation🚀 React Native ECharts Comparison of Guide Getting started with primarily involves using the documentation and configuration options provided by the library's authors, which can be found on GitHub or npm. By referring to these resources, developers can easily implement chart rendering in their projects. React Native Chart Kit On the other hand, has its , where developers can assemble charts by referring to the provided components and related code in the documentation. However, the website offers a large number of components and elements, making it difficult for developers to quickly find the desired examples. Implementing complex charts often requires developers to think of their implementation methods, which can lower development efficiency. Victory Native website Compared to and , has several advantages: Victory Native React Native Chart Kit React Native ECharts Documents The description provided in the of is more clear, comprehensive, and provides ready-to-use examples. Developers can easily understand the library's features, configurations, and usage through the documentation. Additionally, there are numerous available on the official ECharts website, which further assists developers in quickly implementing various types of charts. official documentation Victory Native usage examples Online Preview Just like the ECharts library, provides an online preview and testing support. You can directly copy the chart configuration to see how it renders in React Native. React Native ECharts Click here for an online preview Multiterminal code also support component reuse on the web, enabling cross-platform requirements and achieving code sharing across multiple platforms. It effortlessly achieves code uniformity and ensures consistency of charts across different platforms, thus enhancing our development efficiency. React Native ECharts Support for two rendering modes supports two rendering modes: Svg and Skia. It is implemented based on react-native-svg and react-native-skia. react-native-skia utilizes the Skia Graphics Library, which is a high-performance graphics rendering engine that provides faster drawing and rendering speeds. It is a boon for developers who want to experience Skia's capabilities. React Native ECharts Conclusion Finally, let's compare the performance of these three chart libraries from the following perspectives: React Native Chart Kit Victory Native React Native ECharts Basic Chart Suitability ✅ ✅ ✅ Chart Variety ➖ ✅ ✅ Rendering for Large Data ➖ ➖ ✅ Ease of Development ✅ ➖ ✅ Multiterminal code ➖ ➖ ✅ It is undeniable that both and are excellent chart libraries for React Native. However, the newly introduced has certain advantages in terms of applicability and ease of entry. Especially in some relatively complex but common charts, such as path charts, radar charts, and candlestick charts, provides examples that allow developers to easily implement them by simply modifying the data in the example code. Victory Native React Native Chart Kit React Native ECharts React Native ECharts In these scenarios, is highly recommended as it greatly improves development efficiency. Additionally, for projects with a high demand for various types of charts, the rich collection of chart examples provided by makes it easier for us to handle diverse chart requirements😁 React Native ECharts React Native ECharts Author: xuanweiH Also published . here
