Oracle JET (JavaScript Extension Toolkit) is a collection of open-source JavaScript libraries, tools, and a set of best practices that enable developers to build client-side applications quickly and efficiently. Oracle JET is designed to work with Oracle products, but it can also be used with other technologies and frameworks. In this article, we will walk you through the process of installing Oracle JET and setting up your development environment.

System Requirements

Before you start installing Oracle JET, make sure your system meets the following requirements:

• Operating System: Windows, macOS, or Linux
• Node.js: 14 or later (LTS version recommended)
• npm (Node Package Manager): 6 or later
• Git: 2.24 or later (optional but recommended)

Node.js and npm Installation

If you don’t have Node.js and npm installed on your system, you can download the latest version from the official Node.js website. Follow these steps to install Node.js and npm:

1. Go to the Node.js download page and select the correct version for your operating system.
2. Run the installer and follow the prompts to install Node.js and npm.
3. Once the installation is complete, open a terminal or command prompt and type node -v to verify that Node.js is installed correctly.
4. Type npm -v to verify that npm is installed correctly.

Git Installation (Optional)

If you want to use Git for version control, you can download the latest version from the official Git website. Follow these steps to install Git:

1. Go to the Git download page and select the correct version for your operating system.
2. Run the installer and follow the prompts to install Git.
3. Once the installation is complete, open a terminal or command prompt and type git --version to verify that Git is installed correctly.

Installing Oracle JET

Oracle JET can be installed using npm or yarn. Here are the steps to install Oracle JET using npm:

1. Open a terminal or command prompt and navigate to the directory where you want to install Oracle JET.
2. Type the following command to install Oracle JET:
   bash
npm install @oracle/oraclejet
3. Wait for the installation to complete. This may take a few minutes depending on your internet connection and system speed.

Verifying Oracle JET Installation

Once the installation is complete, you can verify that Oracle JET is installed correctly by running the following command:
bash
npm ls @oracle/oraclejet
This command will display the version of Oracle JET that is installed on your system.

Setting Up Your Development Environment

After installing Oracle JET, you need to set up your development environment. Here are the steps to set up your development environment:

1. Create a new directory for your project and navigate to that directory in your terminal or command prompt.
2. Initialize a new npm project by running the following command:
   bash
npm init
3. Follow the prompts to create a package.json file for your project.
4. Install the required dependencies for Oracle JET by running the following command:
   bash
npm install
5. Create a new file called main.js and add the following code to import Oracle JET:
   javascript
const oj = require('@oracle/oraclejet');
6. Create a new file called index.html and add the following code to create a basic Oracle JET application:
   “`html

Oracle JET Application

``
7. Openindex.html` in a web browser to see your Oracle JET application in action.

Using Oracle JET CLI

Oracle JET provides a command-line interface (CLI) that you can use to create, build, and serve your applications. Here are the steps to use Oracle JET CLI:

1. Install Oracle JET CLI by running the following command:
   bash
npm install -g @oracle/oraclejet-cli
2. Create a new Oracle JET application by running the following command:
   bash
ojet create myapp
3. Navigate to the myapp directory and run the following command to build and serve your application:
   bash
ojet serve
4. Open a web browser and navigate to http://localhost:8000 to see your Oracle JET application in action.

Conclusion

In this article, we walked you through the process of installing Oracle JET and setting up your development environment. We also showed you how to use Oracle JET CLI to create, build, and serve your applications. With Oracle JET, you can build client-side applications quickly and efficiently using JavaScript, HTML, and CSS.

What are the system requirements for installing Oracle JET?

Oracle JET can be installed on various operating systems, including Windows, macOS, and Linux. The minimum system requirements include a 64-bit processor, at least 4 GB of RAM, and 2 GB of available disk space. Additionally, Oracle JET requires Node.js (version 14 or later) and npm (version 6 or later) to be installed on the system. It is also recommended to have a code editor or IDE, such as Visual Studio Code or IntelliJ IDEA, to develop and debug Oracle JET applications.

Before installing Oracle JET, ensure that the system meets the required specifications. If the system does not meet the requirements, it may lead to installation issues or poor performance. It is also recommended to check the Oracle JET documentation for any specific requirements or recommendations for the operating system being used. By ensuring the system meets the requirements, developers can ensure a smooth installation and development experience with Oracle JET.

How do I install Oracle JET using the command line interface?

To install Oracle JET using the command line interface, open a terminal or command prompt and navigate to the directory where the Oracle JET application will be created. Then, run the command npm install -g @oracle/ojet-cli to install the Oracle JET CLI globally. Once the installation is complete, run the command ojet create <app-name> to create a new Oracle JET application. Replace <app-name> with the desired name of the application.

After running the ojet create command, the Oracle JET CLI will prompt for the application type and template. Select the desired options and follow the prompts to complete the installation. Once the installation is complete, navigate to the application directory and run the command ojet serve to start the application. The application will be available at http://localhost:8000 by default. Developers can then access the application and start developing and customizing it as needed.

What is the difference between the Oracle JET CLI and the Oracle JET Yeoman generator?

The Oracle JET CLI and the Oracle JET Yeoman generator are two different tools used to create and manage Oracle JET applications. The Oracle JET CLI is a command-line interface that provides a set of commands to create, build, and serve Oracle JET applications. It is a lightweight and flexible tool that allows developers to create applications quickly and easily. On the other hand, the Oracle JET Yeoman generator is a scaffolding tool that uses Yeoman to generate Oracle JET applications. It provides a more comprehensive set of features and options for creating applications.

While both tools can be used to create Oracle JET applications, the Oracle JET CLI is recommended for most use cases. It is easier to use and provides a more streamlined experience for creating and managing applications. The Oracle JET Yeoman generator is recommended for more complex applications or for developers who require more fine-grained control over the application structure and configuration. Ultimately, the choice between the two tools depends on the specific needs and preferences of the developer.

How do I configure Oracle JET to use a specific theme or template?

To configure Oracle JET to use a specific theme or template, developers can use the Oracle JET CLI or the Oracle JET Yeoman generator. When creating a new application using the Oracle JET CLI, developers can specify the theme or template using the --theme or --template option. For example, to create an application with the Alta theme, run the command ojet create my-app --theme=alta. When using the Oracle JET Yeoman generator, developers can select the theme or template during the application creation process.

Once the application is created, developers can customize the theme or template by modifying the application’s configuration files. The oraclejet.config.json file contains settings for the application’s theme, template, and other configuration options. Developers can edit this file to change the theme or template, or to customize other aspects of the application’s appearance and behavior. Additionally, developers can use CSS and other styling techniques to further customize the application’s appearance.

Can I use Oracle JET with other frameworks and libraries?

Yes, Oracle JET can be used with other frameworks and libraries. Oracle JET is designed to be a modular and flexible framework, and it can be easily integrated with other technologies. Developers can use Oracle JET with popular frameworks such as React, Angular, and Vue.js, as well as with libraries such as jQuery and Lodash. Oracle JET also provides a set of APIs and interfaces that allow developers to extend and customize the framework to meet their specific needs.

When using Oracle JET with other frameworks and libraries, developers should ensure that the versions are compatible and that the dependencies are properly managed. It is also recommended to follow best practices for modularizing and structuring the application code to ensure that the different technologies work together seamlessly. By combining Oracle JET with other frameworks and libraries, developers can create powerful and flexible applications that meet their specific requirements.

How do I debug and troubleshoot Oracle JET applications?

To debug and troubleshoot Oracle JET applications, developers can use a variety of tools and techniques. The Oracle JET CLI provides a set of commands for debugging and troubleshooting applications, including the ojet serve command with the --debug option. This command starts the application in debug mode, allowing developers to use the browser’s developer tools to inspect and debug the application.

In addition to the Oracle JET CLI, developers can use browser developer tools such as Chrome DevTools or Firefox Developer Edition to debug and troubleshoot Oracle JET applications. These tools provide features such as code inspection, console logging, and network analysis that can help developers identify and fix issues. Developers can also use third-party libraries and tools, such as the Oracle JET Logger, to log and analyze application data. By using these tools and techniques, developers can quickly and easily identify and fix issues in their Oracle JET applications.

What are the best practices for securing Oracle JET applications?

To secure Oracle JET applications, developers should follow best practices for web application security. This includes using HTTPS to encrypt data in transit, validating and sanitizing user input to prevent XSS and SQL injection attacks, and implementing authentication and authorization mechanisms to control access to the application. Developers should also keep the Oracle JET framework and its dependencies up to date to ensure that any known security vulnerabilities are patched.

In addition to these general best practices, Oracle JET provides a set of security features and guidelines that developers can use to secure their applications. The Oracle JET documentation provides guidance on topics such as authentication, authorization, and data encryption, as well as recommendations for securing specific components and features. By following these best practices and guidelines, developers can create secure and trustworthy Oracle JET applications that protect user data and prevent common web application vulnerabilities.