teleren/devto huggingface dataset:
VChart, How to center the label of a bar chart?
Published: 2024-04-26 12:38:52

## Question

How to center the label of a bar chart?

## Description

In a stacked bar chart, it is expected that each label will be centered.

## Solution

Different chart libraries have different solutions. VChart provides label configuration options and supports various postion configurations.
Optional values are: `'outside'`、`'top'`、`'bottom'`、`'left'`、`'right'`、`'inside'`、`'inside-top'`、`'inside-bottom'`、`'inside-right'`·`'inside-left'`、`'top-right'`、`'top-left'`、`'bottom-right'`、`'bottom-left'`

## Code example

```TypeScript
import { StrictMode, useEffect } from "react";
import { createRoot } from "react-dom/client";

const rootElement = document.getElementById("root");
const root = createRoot(rootElement);

import VChart from "@visactor/vchart";

const App = () => {
  useEffect(() => {
    const spec = {
      type: "bar",
      label: {
        visible: true,
        position: "inside",
      },
      data: [
        {
          id: "barData",
          values: [
            { type: "Autocracies", year: "1930", value: 129 },
            { type: "Autocracies", year: "1940", value: 133 },
            { type: "Autocracies", year: "1950", value: 130 },
            { type: "Autocracies", year: "1960", value: 126 },
            { type: "Autocracies", year: "1970", value: 117 },
            { type: "Autocracies", year: "1980", value: 114 },
            { type: "Autocracies", year: "1990", value: 111 },
            { type: "Autocracies", year: "2000", value: 89 },
            { type: "Autocracies", year: "2010", value: 80 },
            { type: "Autocracies", year: "2018", value: 80 },
            { type: "Democracies", year: "1930", value: 22 },
            { type: "Democracies", year: "1940", value: 13 },
            { type: "Democracies", year: "1950", value: 25 },
            { type: "Democracies", year: "1960", value: 29 },
            { type: "Democracies", year: "1970", value: 38 },
            { type: "Democracies", year: "1980", value: 41 },
            { type: "Democracies", year: "1990", value: 57 },
            { type: "Democracies", year: "2000", value: 87 },
            { type: "Democracies", year: "2010", value: 98 },
            { type: "Democracies", year: "2018", value: 99 },
          ],
        },
      ],
      xField: ["year", "type"],
      yField: "value",
      seriesField: "type",
      legends: {
        visible: true,
        orient: "top",
        position: "start",
      },
    };

    const vchart = new VChart(spec, { dom: "chart" });
    vchart.renderSync();

    return () => {
      vchart.release();
    };
  }, []);

  return <div id="chart"></div>;
};

root.render(
  <StrictMode>
    <App />
  </StrictMode>
);
```

## Results show

Online Demo: https://codesandbox.io/p/sandbox/vchart-label-center-cz7wjm?file=%2Fsrc%2Findex.js%3A1%2C1-70%2C1

## Related Documents

Label API: https://visactor.io/vchart/option/barChart#label
Github: https://github.com/VisActor/VChart
How to Temporarily Remove and Reintegrate Cloud Resources from Terraform Management
Tags: webdev, terraform, aws, devops
Published: 2024-04-26 12:32:54

Recently, I've set up ECS on Fargate and ELB (ALB). Generally, resources are managed through Terraform code. However, ECS task definitions and services require updates with each deployment (due to their short lifecycle), so I manage these using the open-source tool [ecspresso](https://github.com/kayac/ecspresso).

## Encountering a Challenge with ELB Configuration

I initially thought that once an ELB is built, it rarely needs updates. But after introducing Blue/Green deployments, I discovered that the target groups in the listener rules change with each deployment. This leads to discrepancies between the Terraform configuration files and the actual resources, causing issues when creating or updating other resources.

To address this issue, I first considered dynamically loading target groups. However, I felt that this approach would complicate the Terraform configuration. Instead, I opted to temporarily remove the frequently updated resources from Terraform's management and reintegrate them as needed.

## Procedure to Remove Resources from Terraform Management

Consider the following listener rule managed in `modules/elb/main.tf`:

```terraform
resource "aws_lb_listener_rule" "blue" {
  listener_arn = aws_lb_listener.https_443.arn
  priority     = 100

  action {
    type             = "forward"
    target_group_arn = aws_lb_target_group.target_blue.arn
  }

  condition {
    host_header {
      values = ["dev.example.jp"]
    }
  }
}
```
Execute the following command in the directory where you perform `terraform apply` to remove this listener rule from Terraform's state file:

```
$ terraform state rm module.elb.aws_lb_listener_rule.blue
```

Finally, either comment out or delete the listener rule so that it does not affect the next `terraform apply`.

## Procedure to Reintegrate Resources into Terraform Management

Verify the listener's ARN from the console and identify the listener rule's ARN using AWS CLI:

```bash
$ aws elbv2 describe-rules --listener-arn [listener's ARN]
```

The output will be as follows; copy the `RuleArn`:

```
{
    "Rules": [
        {
            "RuleArn": "arn:aws:elasticloadbalancing:ap-northeast-1:********:listener-rule/app/example-alb/********/********/********",
            "Priority": "100",
            "Conditions": [
                {
                    "Field": "host-header",
                    "Values": [
                        "dev.example.jp"
                    ],
                    "HostHeaderConfig": {
                        "Values": [
                            "dev.example.jp"
                        ]
                    }
                }
            ],
```

You can reintegrate the resource into Terraform management with the following command:

```bash
$ terraform import module.elb.aws_lb_listener_rule.blue [listener rule's ARN]
```

## Conclusion

I am curious to know how others manage resources that frequently need updates like in this case.
Best gastrointestinal cancer surgeon in Dehradun - Dr. Sachin Arora
Published: 2024-04-26 12:26:47

Introduction

Are you or a loved one battling gastrointestinal cancer and seeking the best possible care? Look no further than Dr. Sachin Arora, a renowned surgeon specializing in gastrointestinal cancers in Dehradun. With his expertise, compassion, and dedication to patient care, Dr. Arora stands out as a beacon of hope for those facing this challenging diagnosis.

 

Who is Dr. Sachin Arora?

Dr. Sachin Arora is a highly skilled and experienced gastrointestinal cancer surgeon based in Dehradun, India. He holds numerous accolades and certifications in surgical oncology, making him a trusted authority in his field. Dr. Arora is known not only for his surgical expertise but also for his compassionate approach to patient care.

 

 

Expertise and Specialization

Dr. Arora specializes in the diagnosis, treatment, and management of various gastrointestinal cancers, including stomach cancer, colorectal cancer, liver cancer, pancreatic cancer, and esophageal cancer, among others. His extensive training and hands-on experience enable him to offer the latest advancements in surgical techniques and treatments for optimal patient outcomes.

 

Comprehensive Care Approach :   One of the hallmarks of Dr. Arora's practice is his comprehensive approach to patient care. He understands that a cancer diagnosis can be overwhelming, both emotionally and physically, which is why he takes the time to educate and empower his patients throughout their journey. From the initial consultation to post-operative follow-up care, Dr. Arora is committed to providing personalized attention and support every step of the way.

 

State-of-the-Art Facilities

Dr. Sachin Arora operates out of state-of-the-art medical facilities equipped with the latest advancements in surgical technology and infrastructure. These facilities adhere to stringent safety protocols and ensure the highest standards of patient care and comfort.

 

Patient-Centric Philosophy

What sets Dr. Arora apart is his patient-centric philosophy, which prioritizes the individual needs and concerns of each patient. He believes in open communication, mutual respect, and shared decision-making, fostering a collaborative relationship between himself and his patients.

 

Conclusion :  If you or a loved one is facing gastrointestinal cancer, Dr. Sachin Arora is the name you can trust for expert care and compassionate support. With his unparalleled expertise, state-of-the-art facilities, and patient-centric approach, Dr. Arora is dedicated to helping you navigate your cancer journey with confidence and optimism.

 

For More Information
Dr. Sachin Arora
MBBS, M.Ch
Surgical Gastroenterologist
Visit us at GEIMS:   16th Milestone, Chakrata Road, Dehradun, Uttarakhand, 248008
Contact Sanjay Medicos:
Ballupur Chowk, Dehradun, 248001
Phone :-   +91-7505209117
5 Reasons to Choose Jalpi for WhatsApp API
Tags: whatsappapi, api, whatsappbusinessmarketing
Published: 2024-04-26 12:22:33

In the realm of WhatsApp API providers, Jalpi stands out as a top-tier choice for businesses seeking seamless integration and unparalleled functionality. With a host of innovative features and a commitment to excellence, [**Jalpi**](https://jalpi.com/) offers a comprehensive solution for businesses of all sizes.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/rvlfmqz3m4381tfebyzs.jpg)

Here are 5 reasons why Jalpi should be your go-to provider for **WhatsApp API**:

**Cutting-Edge Technology**
At Jalpi, we pride ourselves on staying at the forefront of technological advancements. Our WhatsApp API solution is built on cutting-edge technology, ensuring optimal performance, reliability, and scalability. With our state-of-the-art infrastructure and robust architecture, you can trust Jalpi to deliver a seamless messaging experience for your customers.

**Customization and Flexibility**
We understand that every business is unique, with its own set of requirements and preferences. That's why Jalpi offers a high degree of customization and flexibility in our WhatsApp API solution. Whether you need to tailor the chatbot interface to match your brand identity or integrate specific features to meet your business objectives, Jalpi has you covered.

**Robust Security Measures**
Security is a top priority at Jalpi. Our WhatsApp API solution is built with robust security measures to safeguard your data and protect against unauthorized access. From end-to-end encryption to multi-factor authentication, we employ industry-leading security protocols to ensure the privacy and integrity of your communications.

**Seamless Integration**
Integrating a WhatsApp API into your existing systems and workflows should be a hassle-free experience. With Jalpi, seamless integration is our promise. Our API is designed to easily integrate with a wide range of platforms and applications, allowing you to leverage the power of WhatsApp messaging without disruption to your operations.

**Dedicated Support and Resources**
At Jalpi, we believe that our success is tied to the success of our customers. That's why we provide dedicated support and resources to help you get the most out of our [**WhatsApp API solution**](https://jalpi.com/). From comprehensive documentation and tutorials to responsive customer support, we're here to assist you every step of the way.

In conclusion, **Jalpi** offers a best-in-class [**WhatsApp API solution**](https://jalpi.com/#contact) designed to meet the unique needs of businesses across industries. With cutting-edge technology, customization options, robust security measures, seamless integration, and dedicated support, Jalpi is the ideal choice for businesses looking to harness the power of WhatsApp messaging.
FFMPEG Libraries - RTSP Client Keep Alive
Tags: ffmpeg
Published: 2024-04-26 12:21:04

I am using the FFMPEG Libraries (Windows Build) to connect and stream RTSP Streams from IP Cameras, this works with no issues on Dahua, Hikvision, etc.

Pseudo code :

avformat_open_input (...)
....
....
av_read_play (...)
...
...
while (TRUE)
{
   int nRet = av_read_frame(...)
   if (nRet == AVERROR_EOF)
   {
      OutputDebugString("AVERROR_EOF\n");
      break;
   }
   else if (nRet < 0)
      break;

   // process packet

   av_free_packet(...);
   av_init_packet(...);
}

However when connecting to a Grandstream IP camera using RTSP URL :

rtsp://admin:Admin1234@192.168.150.11/0

av_read_frame fails with an AVERROR_EOF error after 28 video frames (it's always 28 video frames no matter what resolution, frame rate, etc that the camera is set to)

However when I use the same RTSP URL in VLC it connects and maintains the video stream ok, is VLC sending "Keep Alive" packets or "Receiver Reports" back to the camera to keep the connection active.

If this is needed then how do I do this from the FFMPEG Libraries.

Thanks in advance

Iain
Submission for Frontend Challenge Earth-Day-Edition: different elements of Earth: CSS Card animation
Tags: devchallenge, frontendchallenge, css, javascript
Published: 2024-04-26 12:14:32

_This is a submission for [Frontend Challenge v24.04.17](https://dev.to/devteam/join-us-for-the-next-frontend-challenge-earth-day-edition-52e4), Glam Up My Markup: Earth Day Celebration Landing Page_

**Inspiration**
really worked hard on this, I badly want the gift from the DEV shop 🙂🙃🙂🙃

**What I Built**
The inspiration for this CSS animation project is drawn from the various elements of earth (soil, water, fire, air, and space).

**Demo**
Below given is live link for the submission.
Live Link: https://sundus-hussain.github.io/final_earth_day/

Source code: https://github.com/Sundus-hussain/final_earth_day

**Journey**
The journey begins with finding the right concept.
This design embraces a whimsical yet sophisticated aesthetic, revealing hidden treasures with every click.
Witness creativity blossoming in every pixel, inviting exploration and discovery at every click.
This design is created keeping in mind about the color contrast and opacity of the images(I am still doubtful about it.... hope you like it!!!), and screen reader compatibility.
Responsive design ensures a flawless viewing experience across devices, from desktops to smartphones.
image links:(https://www.craiyon.com/image/sKXNCYtIR5GwfYl4bfKIZg , https://www.istockphoto.com/photo/burning-earth-gm174702179-9948965 , https://sm.mashable.com/mashable_in/photo/default/gw-copy_87rn.jpg, https://w0.peakpx.com/wallpaper/740/461/HD-wallpaper-earth-view-from-space-earth-space-digital-universe.jpg , https://t4.ftcdn.net/jpg/05/55/32/99/360_F_555329972_7CNEDOvl34YykCyeoRe8dMbF5yNTcDRE.jpg, https://encrypted-tbn2.gstatic.com/images?q=tbn:ANd9GcR125PDJbp3L8zOWWTIfke2E4kft5TzVpBsq3LyeJePs2LKkBN5)

Thank you!
How to authorize Xfinity on my smart TV?
Tags: xfinity
Published: 2024-04-26 12:11:35

To authorize Xfinity on your smart TV, follow these simple steps. First, ensure your smart TV is connected to the internet. Next, open the Xfinity Stream app on your TV. Navigate to the "Sign In" option and select it. You will be prompted with a code. Now, grab your smartphone or computer and visit [xfinity.com/authorize](https://xfinitycom-authorize.com/authorize/). Enter the code displayed on your TV screen and follow the on-screen instructions to sign in to your Xfinity account. Once done, your smart TV will be successfully authorized to stream Xfinity content. Enjoy seamless access to your favorite shows and movies.
9. How to draw a dual-axis chart
Published: 2024-04-26 11:44:22

## Title

How to draw a dual-axis chart

## Describe

What methods can be used to draw a chart with two axes like this?

![](https://bytedance.larkoffice.com/space/api/box/stream/download/asynccode/?code=MWI1ODNhYzMwNTBiZjAyNmUxZDA2NDM4MzgzMGZlNzRfV3hBVU1LZlNuYUVObnl6bEpQNjdKSGdzWHJaVWI2cU1fVG9rZW46UG8ycmJCVXV1b2JHaUx4UFJMSGMyVzBUbnhiXzE3MTQxMzE4MzM6MTcxNDEzNTQzM19WNA)

## Solution

In VChart, you can add a right axis and bind the corresponding series to achieve this. Refer to the demo: https://visactor.io/vchart/demo/combination/dual-axis。

## Code Example

```Markdown
const spec = {  type: 'common',  seriesField: 'color',  data: [    {      id: 'id0',      values: [        { x: '周一', type: '早餐', y: 15 },        { x: '周一', type: '午餐', y: 25 },        { x: '周二', type: '早餐', y: 12 },        { x: '周二', type: '午餐', y: 30 },        { x: '周三', type: '早餐', y: 15 },        { x: '周三', type: '午餐', y: 24 },        { x: '周四', type: '早餐', y: 10 },        { x: '周四', type: '午餐', y: 25 },        { x: '周五', type: '早餐', y: 13 },        { x: '周五', type: '午餐', y: 20 },        { x: '周六', type: '早餐', y: 10 },        { x: '周六', type: '午餐', y: 22 },        { x: '周日', type: '早餐', y: 12 },        { x: '周日', type: '午餐', y: 19 }      ]    },    {      id: 'id1',      values: [        { x: '周一', type: '饮料', y: 22 },        { x: '周二', type: '饮料', y: 43 },        { x: '周三', type: '饮料', y: 33 },        { x: '周四', type: '饮料', y: 22 },        { x: '周五', type: '饮料', y: 10 },        { x: '周六', type: '饮料', y: 30 },        { x: '周日', type: '饮料', y: 50 }      ]    }  ],  series: [    {      type: 'bar',      id: 'bar',      dataIndex: 0,      label: { visible: true },      seriesField: 'type',      dataIndex: 0,      xField: ['x', 'type'],      yField: 'y'    },    {      type: 'line',      id: 'line',      dataIndex: 1,      label: { visible: true },      seriesField: 'type',      xField: 'x',      yField: 'y',      stack: false    }  ],  axes: [    { orient: 'left', seriesIndex: [0] },    { orient: 'right', seriesId: ['line'], grid: { visible: false } },    { orient: 'bottom', label: { visible: true }, type: 'band' }  ],  legends: {    visible: true,    orient: 'bottom'  }};const vchart = new VChart(spec, { dom: CONTAINER_ID });vchart.renderSync();// Just for the convenience of console debugging, DO NOT COPY!window['vchart'] = vchart;
```

## 结果展示

![](https://bytedance.larkoffice.com/space/api/box/stream/download/asynccode/?code=OTZlOTlkNzhlN2EzNjgyMWZmNDE5MGFhMzAyNDE1MDNfZ2dEYjlXc3BVVUk1OG9oTVlmS2NrMVRHMmtlY3hLdEZfVG9rZW46QjdjaGJhQTU3b3Rwd054Ym1kY2M1OWVIbllkXzE3MTQxMzE4MzM6MTcxNDEzNTQzM19WNA)

https://visactor.io/vchart/demo/combination/dual-axis

### Related Documents

Demo: [VisActor](https://visactor.io/vchart/demo/combination/dual-axis)

### Tutorial:

- Combination Chart: [VisActor](https://visactor.io/vchart/guide/tutorial_docs/Chart_Types/Combination) API:
  
- Combination Chart: https://visactor.io/vchart/option/commonChart Github: [GitHub - VisActor/VChart: VChart, more than just a cross-platform charting library, but also an expressive data storyteller.](https://github.com/VisActor/VChart/)
What are the methods for formatting VChart chart labels?
Tags: visactor, vchart, visualization, chart
Published: 2024-04-26 11:17:37

## Description
In the VChart bar chart, the default display is the label of the corresponding value of the bar. I want to display something like 'x-axis name: y value' . What are the ways to customize the label display?

## Solution
There are two recommended configuration methods:

1. Configure the formatting function through `label.formatMethod`.
  1. The function parameter is `(text: string | string [], data?: any)` ,`text` is the default displayed text, and `data` is the related data.
  2. The return value of the function can be a string or a string array. Among them, the string array will be displayed as a newline by default.
  3. If you want to configure it as rich text, the return value is the rich text configuration object.

```js
label: {
    formatMethod:(value, data) => `${data.name}: ${value}`
}
```

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/lfnx91mijgcpx1909xg1.png)

2. Configure the template string through `label.formatter`.
```js
label: {
   formatter: `{name} : {value}`
}
```

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/pdimqghgidfjmko9bzim.png)


## Related Documents
- formatMethod demo: https://visactor.io/vchart/demo/label/richtext-label
- formatter demo：https://visactor.io/vchart/demo/label/label-formatter
- Related configuration items: https://visactor.io/vchart/option/barChart#label.formatMethod
- github：https://github.com/VisActor/VChart
Array.reduce() in JavaScript
Tags: javascript, v8, reduce
Published: 2024-04-26 11:15:00

## About Array.reduce()

[reduce()](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/reduce) is a powerful array method. It is considered as an originator of other Array methods like `map()`, `filter()`, etc. which can easily be rewritten with `reduce()`.

[V8 engine](https://v8.dev/blog/elements-kinds#common-elements-kinds) will always try to optimize performance of `reduce()` as well as any other parts of the javascipt code. 

One of the key rules for optimization however is to avoid referencing variables or functions that sit outside the reducer callback function's scope. Otherwise it can create [side-effects](https://en.wikipedia.org/wiki/Side_effect_(computer_science)) when reading a non-local variable (i.e. variables outside of a reducer callback function), which will prevent V8 from optimization.

The [`thisArg`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array#iterative_methods) argument is not provided for `reduce()`.

This youtube video [Comparing JavaScript Array method reduce with for statement](https://www.youtube.com/watch?v=OkVgzONhpiU&t=2555s) demonstrates differences in performance between `reduce()` and [the `for` statement](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/for) and explains requirements for the V8 optimization to kick in. Turn on captions and auto-translate.

## Examples of `reduce()`
Real usage scenarious of `reduce()` will be provided in this blog.