Show all warnings and errors in visual studio code

UPDATE 2019

ES-Lint has introduced a new task in VS Code. You have to enable it in the workspace setings.

"eslint.lintTask.enable": true

Just go to terminal menu and select run task, then choose

eslint: lint whole folder

You can also auto-fix most problems by running the following command in the terminal:

.\node_modules\.bin\eslint.cmd --fix .

Reference: https://marketplace.visualstudio.com/items?itemName=dbaeumer.vscode-eslint

While we still await the problem scanner in VS Code, this is a good enough alternative if you use eslint.

_{OLD ANSWER}

Here is how you can see all problems in less than 10 seconds.

You use a little trick.

Open replace all in files Ctrl + Shift + H.

Replace ; with ;

Hit replace all. That’s it. Now, check Problems.

The assumption here is that all files have at least one semicolon. For
bigger projects, if you get a warning asking you to refine your
search, just enter something that is common in all files but is not
present a lot.