How to show errors/warnings by hotkey in VSCode?

The corresponding cmd name in VS Keybindings is editor.action.showHover. On mac for me the key combo was: cmd+k cmd+i. I’m not sure what it is on windows but you can find out through your command palette by typing show hover. It will show you the current keybinding and you can execute it as well.

If you would like you can remap it like this:

{
    "key": "ctrl+e",
    "command": "editor.action.showHover",
    "when": "editorTextFocus"
}

With that, if your cursor is within an error/warning squiggly line, you can hit ctrl+e to show what you would normally see with hover.

To make the box disappear, hit escape.