Visual Studio Code
Enable "press key and hold" functionality on macOS
macOS has a feature where holding a key will bring up alternative characters. This behaviour affects Visual Studio Code, which can get in the way.
To disable the alternative character menu in Visual Studio Code, run:
$ defaults write com.microsoft.VSCode ApplePressAndHoldEnabled -bool false
To enable the alternative character menu in Visual Studio Code, run:
$ defaults write com.microsoft.VSCode ApplePressAndHoldEnabled -bool true