Run JavaScript in Python

In this class, you'll learn how to run JavaScript in python.

Prerequisites:

1. Python Basics
2. JavaScript Basics
3. js2py module

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1. What is JavaScript?

JavaScript, often abbreviated as JS, is a programming language that conforms to the ECMAScript specification. JavaScript is high-level, often just-in-time compiled, and multi-paradigm. It has curly-bracket syntax, dynamic typing, prototype-based object-orientation, and first-class functions.

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Install Necessary Modules:

Open your Prompt and type and run the following command (individually):

•   pip install js2py  
  

js2py module is used to translator JavaScript to Python & acts as a JavaScript interpreter written in 100% pure Python.

• It translates any valid JavaScript (ECMA Script 5.1) to Python.
• Translation is fully automatic.
• Does not have any dependencies - uses only standard python library.

Limitations:

• strict mode is ignored.
• with statement is not supported.
• Indirect call to eval will is treated as direct call to eval (hence always evals in local scope)

Once Installed now we can import it inside our python code.

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Frequently asked questions ❔

How can I thank you for writing and sharing this tutorial? 🌷

You can and Starring and Forking is free for you, but it tells me and other people that it was helpful and you like this tutorial.

Go here if you aren't here already and click ➞ ✰ Star and ⵖ Fork button in the top right corner. You will be asked to create a GitHub account if you don't already have one.

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How can I read this tutorial without an Internet connection?

1. Go here and click the big green ➞ Code button in the top right of the page, then click ➞ Download ZIP.

   

2. Extract the ZIP and open it. Unfortunately I don't have any more specific instructions because how exactly this is done depends on which operating system you run.

3. Launch ipython notebook from the folder which contains the notebooks. Open each one of them

   Kernel > Restart & Clear Output

This will clear all the outputs and now you can understand each statement and learn interactively.

If you have git and you know how to use it, you can also clone the repository instead of downloading a zip and extracting it. An advantage with doing it this way is that you don't need to download the whole tutorial again to get the latest version of it, all you need to do is to pull with git and run ipython notebook again.

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Authors ✍️

I'm Dr. Milaan Parmar and I have written this tutorial. If you think you can add/correct/edit and enhance this tutorial you are most welcome🙏

See github's contributors page for details.

If you have trouble with this tutorial please tell me about it by Create an issue on GitHub. and I'll make this tutorial better. This is probably the best choice if you had trouble following the tutorial, and something in it should be explained better. You will be asked to create a GitHub account if you don't already have one.

If you like this tutorial, please give it a ⭐ star.

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Licence 📜

You may use this tutorial freely at your own risk. See LICENSE.

Copyright (c) 2020 Dr. Milaan Parmar

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