Moving, Duplicating and Deleting
The most common thing you'll do in your editor is move, duplicate and delete lines. Historically, we have done this with the use of copy/paste and the delete key when necessary. VS Code contains functionality that makes this process much more productive.
Here are a few more keyboard shortcuts to add to your repertoire.
Action
Keyboard Shortcut
Duplicate line
Opt/Alt + Shift + Down/Up Arrow
Move line
Opt/Alt + Down/Up Arrow
Delete Line
Cmd/Ctrl + Shift + K
Note that you don't need to select a line in VS Code to copy/cut it. Just put your cursor anywhere on the line and press Cmd/Ctrl + C or Cmd/Ctrl + X and the entire line will be cut or copied. This is the default behavior of the editor.
Open the "index.html" file in the "start" folder.
    Put your cursor anywhere on the "title" line
    Press Opt/Alt + Up Arrow

Duplicate the "description meta tag

    Put your cursor anywhere on the line with the "meta" tag that has a name of "description"
    Press Opt/Alt + Shift + Down Arrow
    Change the "name" attribute to be "og:description"

Delete the "description" meta tag

    Put your cursor anywhere on the line that has the meta tag with a name of "description"
    Press Cmd/Ctrl + Shift + K
Last modified 2yr ago