First Word (simplified) First Word (simplified)
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You are given a string and you have to find its first word.

This is a simplified version of the First Word mission, which can be solved later.

  • The input string consists of only English letters and spaces.
  • There aren’t any spaces at the beginning and the end of the string.

Input: A string.

Output: A string.


assert first_word("Hello world") == "Hello"
assert first_word("a word") == "a"
assert first_word("greeting from CheckiO Planet") == "greeting"
assert first_word("hi") == "hi"

How it is used: The first word is a command in a command line.

Precondition: The text can contain a-z, A-Z and spaces.

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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=py 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)

checkio serv -d

Alternatevly, you can install Chrome extension or FF addon

checkio install-plugin
checkio install-plugin --ff
checkio install-plugin --chromium

Read more here about other functionality that the checkio client provides. Feel free to submit an issue in case of any difficulties.

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