how to use conda environment in jupyter notebook code example

Example 1: add conda env to jupyter

source activate myenv
python -m ipykernel install --user --name myenv --display-name "Python (myenv)"

Example 2: add conda environment to jupyter

python -m ipykernel install --user --name=firstEnv

Example 3: jupyter lab use conda environment

$ conda activate cenv
(cenv)$ conda install ipykernel
(cenv)$ ipython kernel install --user --name=<any_name_for_kernel>
(cenv($ conda deactivate