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Blog
New Array Methods, Alternative Static Typing and JQuery Release.

Get to know something new to become a better coder!
TS 5.0 and new Missions are here!

TS 5.0 implemented at CheckiO, new missions and interesting articles.
This week's missions: Escape and The Greatest Common Divisor

You have to get your hands on these challenges!
This week's missions: Domino Chain and Currency Style

Work on your progress with our latest missions.