Hexlet doesn not really work properly in your browser, because it is pretty old. Please, upgrade.

Regular expressions

Almost every programmer faces regular expressions in everyday practice. Many are frightened by them, but regular expressions are based on few basic ideas, and by understanding them you can learn understand expressions once and forever.

Lessons

About

Students
299
Messages
16
Exercises
8
Hours
5

Challenges

Some courses include challenge exercises. They will help you obtain more experience in programming and strengthen new skill. This particular course doesn't have any, but you can check out challenges from other courses.