All Upper II

Elementary

DE EN FR Polish UK ZH-HANS

Proszę sprawdzić, czy podany ciąg znaków zawiera wszystkie symbole pisane wielkimi literami. Jeśli ciąg jest pusty lub nie ma w nim...

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bool
string

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Settings

Code:

Auto close brackets and quotes
Highlight the same word
In browser Run instead of server Run

Other:

Auto scroll to the best solutions after successful check
Do not show the best solutions (but those are still available after "View All Solutions" button)

Invalid hot key. Each hot key should be unique and valid

Hot keys:

to Run Code:
to Check Solution:
to Stop:

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CheckiO Extensions

CheckiO Extensions allow you to use local files to solve missions. More info in a blog post.

In order to install CheckiO client you'll need installed Python (version at least 3.8)

Install CheckiO Client first:

pip3 install checkio_client

Configure your tool

checkio --domain=js config --key=

Sync solutions into your local folder

checkio sync

(in beta testing) Launch local server so your browser can use it and sync solution between local file end extension on the fly. (doesn't work for safari)