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.. Generated automatically by doc/tools/makerst.py in Godot's source tree.
.. DO NOT EDIT THIS FILE, but the JavaScript.xml source instead.
.. The source is found in doc/classes or modules/<name>/doc_classes.

.. _class_JavaScript:

JavaScript
==========

**Inherits:** :ref:`Object<class_Object>`

Singleton that connects the engine with the browser's JavaScript context in HTML5 export.

Description
-----------

The JavaScript singleton is implemented only in the HTML5 export. It's used to access the browser's JavaScript context. This allows interaction with embedding pages or calling third-party JavaScript APIs.

Tutorials
---------

- `#calling-javascript-from-script <../getting_started/workflow/export/exporting_for_web.html#calling-javascript-from-script>`_ in :doc:`../getting_started/workflow/export/exporting_for_web`

Methods
-------

+-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Variant<class_Variant>` | :ref:`eval<class_JavaScript_method_eval>` **(** :ref:`String<class_String>` code, :ref:`bool<class_bool>` use_global_execution_context=false **)** |
+-------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------+

Method Descriptions
-------------------

.. _class_JavaScript_method_eval:

- :ref:`Variant<class_Variant>` **eval** **(** :ref:`String<class_String>` code, :ref:`bool<class_bool>` use_global_execution_context=false **)**

Execute the string ``code`` as JavaScript code within the browser window. This is a call to the actual global JavaScript function ``eval()``.

If ``use_global_execution_context`` is ``true``, the code will be evaluated in the global execution context. Otherwise, it is evaluated in the execution context of a function within the engine's runtime environment.

.. |virtual| replace:: :abbr:`virtual (This method should typically be overridden by the user to have any effect.)`
.. |const| replace:: :abbr:`const (This method has no side effects. It doesn't modify any of the instance's member variables.)`
.. |vararg| replace:: :abbr:`vararg (This method accepts any number of arguments after the ones described here.)`