How to make vscode compact multiple lines to a single line?

Question

I have 4 lines like this in vscode:

1 line;
2 line;
3 line;
4 line;

Does vscode have a shortcut that can quickly compact 4 lines to 1 line like this:

1 line; 2 line; 3 line; 4 line;

Answer 1

Select your code => F1 => "Join Lines"

You can also create a keyboard shortcut for this command editor.action.joinLines

Default shortcut on Mac is Ctrl+J

Answer 2

It seems vscode's "Join Lines" keyboard shortcut in macOS is ctrl + j:

Answer 3

I also had same issue and solved it. If you use Prettier, try it as below.

Settings -> Prettier.printWidth" 

The default value is 80. If you change this value higher than 80.