Jupyter Notebooks through javascript code files support.

[liudonghua123]

It's really amazing to write python code along with markdown in vscode via Jupyter Notebooks support. From the doc https://code.visualstudio.com/docs/python/jupyter-support-py, I can write the following code snippets in a .py file and run each cell.

# %% [markdown]
# This is a markdown cell.

# %%
print("hello world")

I would also like to write js code like above in .js not .py file with the same coding experience. Maybe the code like the following.

// %% [markdown]
// This is a markdown cell.

// %%
// This is a code cell.
console.info("hello world")

However, I can only write js code with markdown in a .py file right now. I hava installed ijavascript and jp-babel jupyter kernel for js support.