GraalJS is a fast JavaScript language implementation built on top of GraalVM.

import org.graalvm.polyglot.Context; try (Context context = Context.create()) { context.eval("js", "console.log('Hello from GraalJS!')"); }

GraalVM provides an ECMAScript-compliant runtime to execute JavaScript and Node.js applications. It is fully standard compliant, executes applications with high performance, and provides all benefits from the GraalVM stack, including language ...

GraalVM provides an ECMAScript-compliant runtime to execute JavaScript and Node.js applications. It is fully standard compliant, execute applications with high performance, and provide all benefits from the GraalVM stack, including language ...

This reference documentation provides ... to the Nashorn or Rhino engines, migration guides are available. GraalVM can run plain JavaScript (ECMAScript) code:...

GraalJS is a JavaScript engine implemented in Java on top of GraalVM. It is an ECMAScript-compliant runtime to execute JavaScript and Node.js applications, and includes all the benefits from the GraalVM stack including interoperability with Java.

January 15, 2024 - JavaScript must be enabled to correctly display this content · GraalVM provides an ECMAScript-compliant runtime to execute JavaScript and Node.js applications. It is fully standard compliant, executes applications with high performance, and provides all benefits from the GraalVM stack, including ...

GraalJS provides the following function objects in the global scope as specified by ECMAScript, representing the JavaScript core library: Array, ArrayBuffer, Boolean, DataView, Date, Error, Function, JSON, Map, Math, Number, Object, Promise, Proxy, Reflect, RegExp, Set, SharedArrayBuffer, String, Symbol, TypedArray, WeakMap, and WeakSet.

GraalVM JavaScript supports the full ES modules specification, including import statements, dynamic import of modules using import(), and advanced features such as top-level await.

For a full list of options of the JavaScript engine, pass the --help:js flag to the js launcher (available from GraalVM 22.1., for older releases use --help:languages). To include internal options, use --help:js:internal.

GraalJS is compatible with the latest ECMAScript standard, and can be run in a variety of Java-based embedding scenarios. Depending on the embedding, JavaScript packages and modules may be used in different ways.

You can find it under org.graalvm.polyglot:js. We provide example projects running GraalJS embedded in Java on JDK 21 (or later) and using the Graal compiler: Polyglot Embedding Demo. Maven and Gradle projects for a simple JavaScript “Hello World” application.

July 15, 2024 - JavaScript must be enabled to correctly display this content · GraalVM provides an ECMAScript-compliant runtime to execute JavaScript and Node.js applications. It is fully standard compliant, executes applications with high performance, and provides all benefits from the GraalVM stack, including ...

GraalVM JavaScript can be started via ScriptEngine when graaljs-scriptengine.jar is included on the classpath. The engine registers under several different names, e.g., Graal.js. Note that the Nashorn engine might be available under its names as well. To start GraalVM JavaScript from ScriptEngine, the following code can be used:

GraalVM provides a JSR-223 compliant javax.script.ScriptEngine implementation for running JavaScript. Note that this feature is provided for legacy reasons in order to allow easier migration for implementations currently based on a ScriptEngine.

GraalVM JavaScript provides a Packages global property: ... GraalVM JavaScript supports the creation of Java arrays from JavaScript code.

February 22, 2019 - GraalVM’s JavaScript engine is a Java application that works on any Java 8+ implementation. The JavaScript execution is built around an abstract syntax tree (AST) interpreter that can be executed like any other Java application.

GraalVM JavaScript provides the following function objects in the global scope as specified by ECMAScript, representing the JavaScript core library: Array, ArrayBuffer, Boolean, DataView, Date, Error, Function, JSON, Map, Math, Number, Object, Promise, Proxy, Reflect, RegExp, Set, SharedArrayBuffer, String, Symbol, TypedArray, WeakMap, and WeakSet.

For a full list of options of the JavaScript engine, pass the --help:js flag to the js launcher (available from GraalVM 22.1, for older releases use --help:languages). To include internal options, use --help:js:internal.

May 22, 2024 - This is a simple maven project that demonstrates how it's possible to run Graal.js on a stock JDK11. The application is a simple JavaScript benchmark embedded in a Java application which compares performance of Graal.js and Nashorn.