how to switch from one branch to another in git code example

Example 1: canging branch in git

$ git checkout <existing_branch>

$ git checkout -b <new_branch>

Example 2: how to switch another branch in git

git checkout 'another_branch'

Example 3: git switch branch

git switch <branch_name>

git checkout <branch_name>

Example 4: how to switch to another branch in git

Github branch 
pull request in branch

Example 5: canging branch in git

$ git branch