how to add new alias in .bash_profile in mac code example

Example 1: bash new alias

# syntax
# alias *<alias-name>="*<what-alias-represents>"

# example
alias ll="ls -lrt"

Example 2: bash profile alias

#In .bash_profile on MAC, not sure if this works for linux

#Terminal Command Aliases
alias e=exit
alias c=clear
alias r=reset

#Software Aliases
alias jn=jupyter-notebook
alias python=python3.7