The JJS (Java JavaScript Shell) feature introduced in Java 8 allows JavaScript code to be executed in Java. It provides an easy way to test, prototype, and debug JavaScript code by simply executing "jjs" from the command line. JJS supports JavaScript 1.8.5, allows defining and using JavaScript functions, and provides built-in functions for Java integration.
New Features in Java 8: JJS
JJS (Java JavaScript Shell) is a feature introduced in Java 8 New feature that allows JavaScript code to be executed directly in Java. It provides a convenient way to test and explore JavaScript code without using a separate JavaScript interpreter.
How to use JJS
To use JJS, you need to execute the following command in the command line:
<code>jjs</code>
This will start the JJS shell, which will bring There is a JavaScript prompt> . Now, JavaScript code can be entered and executed immediately.
Advantages of JJS
There are several advantages to using JJS:
- Simple and easy to use: JJS allows direct Execute JavaScript code in Java without configuring or installing additional software.
- Rapid Prototyping: JJS can be used to quickly prototype JavaScript code without creating a separate JavaScript project.
- Java and JavaScript Integration: JJS allows easy exchange of data and objects between Java and JavaScript code.
- Debugging support: JJS provides debugging support that allows setting breakpoints and inspecting variable values in JavaScript code.
Additional Details
- JJS has support for JavaScript 1.8.5.
- JJS supports defining and using JavaScript functions in Java.
- JJS provides some built-in functions integrated with Java, such as
java.lang.Systemjava.io.File.
In short, JJS is a useful new feature in Java 8 that allows JavaScript code to be executed directly in Java, thus providing an easy-to-use way to test, prototype and debug JavaScript code.
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