How to get ipywidgets working in Jupyter Lab?

Question

In Jupyter Notebook, ipywidgets work fine, however they seem to not work in Jupyter Lab (which is supposedly better than Notebook).

I followed these directions.

Answer 1

According to ipywidgets.readthedocs.io documentation (Installing the JupyterLab Extension), for "JupyterLab" do the following steps in "Anaconda Prompt".

Step 1

conda install -c conda-forge nodejs

Step 2

jupyter labextension install @jupyter-widgets/jupyterlab-manager