Chrome: console.log, console.debug are not working

Question

Console.log and debug not printing, only return undefined. Why it can be? I\'ve tried to re-install chrome, but it doesn\'t help.

Here is screenshot from chrome\'s m

Answer 1

If you are seeing(3 messages are hidden by filters. Show all messages.) then click on show all message link in Chrome dev tool console.

Because if this option enabled by mistake the console.log("") message will show but this will in in hidden state.