Getting started with TypeScript Bullet Chart control

This document explains how to create a simple Bullet Chart and configure its features in TypeScript using the Essential JS 2 webpack quickstart seed repository.

This application is integrated with the webpack.config.js configuration and uses the latest version of the webpack-cli. It requires node v14.15.0 or higher. For more information about webpack and its features, refer to the webpack getting-started guide.

Prerequisites

Before you begin, ensure you have the following installed on your machine:

  • Node.js (v14.15.0 or higher)
  • Visual Studio Code (or any text editor)
  • Git for cloning the quickstart repository
  • A modern web browser (Chrome, Edge, Firefox, or Safari) to view the result

Dependencies

The Bullet Chart control ships as part of the @syncfusion/ej2-charts package. Below is the list of minimum dependencies required.

|-- @syncfusion/ej2-charts
    |-- @syncfusion/ej2-base
    |-- @syncfusion/ej2-data
    |-- @syncfusion/ej2-pdf-export
    |-- @syncfusion/ej2-file-utils
    |-- @syncfusion/ej2-compression
    |-- @syncfusion/ej2-svg-base

Quick Setup

Step 1: Create a Project Folder

Create a folder named my-bullet-chart in your desired location. This folder will contain your Syncfusion Bullet Chart TypeScript project.

Step 2: Open Command Prompt

Open the command prompt and navigate to my-bullet-chart folder created in Step 1. You can do this by:

  • For Windows: Open Command Prompt (cmd) or PowerShell and use the cd command to navigate to my-bullet-chart folder.
  • For macOS/Linux: Open Terminal and use the cd command to navigate to my-bullet-chart folder.

Step 3: Clone the Quickstart Repository

Run the following command to clone the Syncfusion JavaScript (Essential JS 2) quickstart project from GitHub.

git clone https://github.com/SyncfusionExamples/ej2-quickstart-webpack ej2-quickstart

Step 4: Navigate to Project Folder

After cloning the application in the ej2-quickstart folder, run the following command to navigate to the project directory.

cd ej2-quickstart

Step 5: Install Required Packages

Syncfusion JavaScript (Essential JS 2) packages are available on the npmjs.com public registry. You can install all Syncfusion JavaScript (Essential JS 2) controls in a single @syncfusion/ej2 package or individual packages for each control.

The quickstart application is already preconfigured with the dependent @syncfusion/ej2 package in the ~/package.json file. Use the following command to install all the dependent npm packages from the command prompt:

npm install

This command will download and install all necessary dependencies for your project.

Step 6: Update the HTML Template

Open the ej2-quickstart folder in Visual Studio Code or any text editor of your choice.

Locate the ~/src/index.html file in the project, preserve any existing <link> and <script> tags that were generated by the seed, and add the HTML div tag with its id attribute as element inside <body> to initialize the Bullet Chart container.

<!DOCTYPE html>
<html lang="en">

<head>
    <title>Essential JS 2 Bullet Chart</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="TypeScript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <!-- existing head content from the seed template remains here -->
</head>

<body>
    <h1>Syncfusion Bullet Chart</h1>
    <!--container which is going to render the Bullet Chart-->
    <div id='element'>
    </div>
</body>

</html>

Step 7: Create the Bullet Chart Component with Data

Locate the src/app/app.ts file in your project and add the Bullet Chart component with sample data.

Populate Bullet Chart with Data: Create a dataSource array of objects (each with a value and a target) and a single chart instance. Map the value and target fields to the valueField and targetField properties. Set minimum, maximum, and interval to control the numeric axis.

import { BulletChart } from '@syncfusion/ej2-charts';
let bulletChart: BulletChart = new BulletChart({
    dataSource: [{ value: 100, target: 80 },
            { value: 200, target: 180 },
            { value: 300, target: 280 },
            { value: 400, target: 380 },
            { value: 500, target: 480 }],
    valueField: 'value',
    targetField: 'target',
    height: '300',
    minimum: 0, maximum: 500, interval: 50,
});
bulletChart.appendTo('#element');

You can refer to our JavaScript Bullet Chart feature tour page for its groundbreaking feature representations. You can also explore our JavaScript Bullet Chart example that shows various Bullet Chart configurations.

Step 8: Run the Application

Open the integrated terminal in Visual Studio Code or use your command prompt to run the application. Use the npm run start command:

npm run start

The application will compile and automatically start in your default web browser. The application typically runs at http://localhost:4000. You should see the Syncfusion® Bullet Chart control displayed on the page. To stop the dev server, press Ctrl+C in the terminal. For a production build, use npm run build.

Step 9: View Your Bullet Chart

Wait for the webpack dev server to complete the build process. Once completed, you will see the Bullet Chart control rendering in your browser with the sample monthly data. The control is now successfully initialized and ready for further customization.

Output

The chart now renders five value bars with their target markers between 0 and 500, with tick marks every 50 units.

Troubleshooting

  • Blank page, no Bullet Chart — The npm package failed to load. Verify the network tab and that npm install finished successfully.
  • Cannot find module '@syncfusion/ej2-charts' — Dependencies were not installed. Re-run npm install.
  • 'BulletChart' is undefined or cannot be imported - Ensure that BulletChart is imported from @syncfusion/ej2-charts and that the package is installed.