Backend DevelopmentGolangECharts and golang: Tips and experiences in making practical statistical chartsECharts and golang: Tips and experiences in making practical statistical charts
ECharts and golang: Skills and experience in making practical statistical charts, specific code examples are needed
With the popularity of data processing, data visualization has become many application fields essential skills. And tools for making charts have also emerged. ECharts is an open source data visualization tool, and golang is a high-efficiency and high-concurrency language. The combination of the two can create efficient and practical charts.
This article will introduce the skills and experience of using ECharts and golang to make practical statistical charts, and provide specific code examples.
- First, we need to pass data from the backend to the frontend. In golang, you can use the http package to implement simple web services. For example, the following is a simple web server:
package main
import (
"encoding/json"
"net/http"
)
type Data struct {
Label string `json:"label"`
Value int `json:"value"`
}
func main() {
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
data := []Data{
{"January", 10},
{"February", 20},
{"March", 30},
{"April", 25},
{"May", 15},
{"June", 5},
}
jsonData, err := json.Marshal(data)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "application/json")
w.Write(jsonData)
})
http.ListenAndServe(":8080", nil)
}- Next, we will use ECharts on the front end to display data. First, ECharts needs to be introduced in html:
<!DOCTYPE html> <html> <head> <title>Chart Example</title> <script src="https://cdn.staticfile.org/echarts/4.1.0/echarts.min.js"></script> </head> <body> <div id="chart" style="width: 600px;height:400px;"></div> <script src="chart.js"></script> </body> </html>
We introduced ECharts in the head tag and placed a div in the body to host the chart. At the same time, we also introduced a js file named "chart.js" for loading data and drawing charts.
- The following is the code we use to draw charts using ECharts:
fetch('/').then(function(response) {
return response.json();
}).then(function(data) {
var chartDom = document.getElementById('chart');
var myChart = echarts.init(chartDom);
var option;
option = {
title: {
text: 'My Chart',
left: 'center',
},
tooltip: {},
xAxis: {
data: data.map(function(item) {
return item.label;
})
},
yAxis: {},
series: [{
type: 'bar',
data: data.map(function(item) {
return item.value;
})
}]
};
if (option && typeof option === "object") {
myChart.setOption(option, true);
}
});The code uses the fetch function to request data and uses the json() method to parse the response data into json object. We then created an ECharts instance and set up a title, tooltip, X/Y axes, and a bar series for the chart.
- Finally, run the server using golang in the application, and then open the html file in the browser. At this point we can see a chart drawn using ECharts and golang, which displays some data we defined on the backend.
The above is a basic example of using ECharts and golang to create practical statistical charts. If you need to make more complex charts, you can find the appropriate configuration options in the official documentation of ECharts and use golang to manage the data. With constant trial and practice, you will be able to create charts that are both highly practical and beautiful.
The above is the detailed content of ECharts and golang: Tips and experiences in making practical statistical charts. For more information, please follow other related articles on the PHP Chinese website!
Choosing Between Golang and Python: The Right Fit for Your ProjectApr 19, 2025 am 12:21 AMGolangisidealforperformance-criticalapplicationsandconcurrentprogramming,whilePythonexcelsindatascience,rapidprototyping,andversatility.1)Forhigh-performanceneeds,chooseGolangduetoitsefficiencyandconcurrencyfeatures.2)Fordata-drivenprojects,Pythonisp
Golang: Concurrency and Performance in ActionApr 19, 2025 am 12:20 AMGolang achieves efficient concurrency through goroutine and channel: 1.goroutine is a lightweight thread, started with the go keyword; 2.channel is used for secure communication between goroutines to avoid race conditions; 3. The usage example shows basic and advanced usage; 4. Common errors include deadlocks and data competition, which can be detected by gorun-race; 5. Performance optimization suggests reducing the use of channel, reasonably setting the number of goroutines, and using sync.Pool to manage memory.
Golang vs. Python: Which Language Should You Learn?Apr 19, 2025 am 12:20 AMGolang is more suitable for system programming and high concurrency applications, while Python is more suitable for data science and rapid development. 1) Golang is developed by Google, statically typing, emphasizing simplicity and efficiency, and is suitable for high concurrency scenarios. 2) Python is created by Guidovan Rossum, dynamically typed, concise syntax, wide application, suitable for beginners and data processing.
Golang vs. Python: Performance and ScalabilityApr 19, 2025 am 12:18 AMGolang is better than Python in terms of performance and scalability. 1) Golang's compilation-type characteristics and efficient concurrency model make it perform well in high concurrency scenarios. 2) Python, as an interpreted language, executes slowly, but can optimize performance through tools such as Cython.
Golang vs. Other Languages: A ComparisonApr 19, 2025 am 12:11 AMGo language has unique advantages in concurrent programming, performance, learning curve, etc.: 1. Concurrent programming is realized through goroutine and channel, which is lightweight and efficient. 2. The compilation speed is fast and the operation performance is close to that of C language. 3. The grammar is concise, the learning curve is smooth, and the ecosystem is rich.
Golang and Python: Understanding the DifferencesApr 18, 2025 am 12:21 AMThe main differences between Golang and Python are concurrency models, type systems, performance and execution speed. 1. Golang uses the CSP model, which is suitable for high concurrent tasks; Python relies on multi-threading and GIL, which is suitable for I/O-intensive tasks. 2. Golang is a static type, and Python is a dynamic type. 3. Golang compiled language execution speed is fast, and Python interpreted language development is fast.
Golang vs. C : Assessing the Speed DifferenceApr 18, 2025 am 12:20 AMGolang is usually slower than C, but Golang has more advantages in concurrent programming and development efficiency: 1) Golang's garbage collection and concurrency model makes it perform well in high concurrency scenarios; 2) C obtains higher performance through manual memory management and hardware optimization, but has higher development complexity.
Golang: A Key Language for Cloud Computing and DevOpsApr 18, 2025 am 12:18 AMGolang is widely used in cloud computing and DevOps, and its advantages lie in simplicity, efficiency and concurrent programming capabilities. 1) In cloud computing, Golang efficiently handles concurrent requests through goroutine and channel mechanisms. 2) In DevOps, Golang's fast compilation and cross-platform features make it the first choice for automation tools.
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
Hot Tools
mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),
VSCode Windows 64-bit Download
A free and powerful IDE editor launched by Microsoft
EditPlus Chinese cracked version
Small size, syntax highlighting, does not support code prompt function
MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.
SublimeText3 Chinese version
Chinese version, very easy to use
