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Blog
Back into the future or the history of JavaScript language
A look back on when and how JavaScript was created and came to a point where it is now.
3 Free JavaScript books by O'Reilly
An overview of the 3 free O’Reilly books about JavaScript along with some information on their authors.
EcmaScript 2018. Template Literal Revision
Finishing the series of articles devoted to EcmaScript innovations. First look at ES 2018.
EcmaScript 2017 .getOwnProperty and trailing commas
Going through the other novelties of EsmaScript 8. Object.getOwnPropertyDescriptors and trailing commas in function parameter lists and calls
EcmaScript 2017. String padding
Continuing the revision of the latest EcmaScript 8 features. A closer look at the String padding function.
EcmaScript 2017. Object.values/ Object.entries
The latest feature set of EcmaScript 8. Taking a closer look at the function Object.values/Object.entries.
Results of the first week
Reverse Roman Numerals and Roman Numerals are no longer in random review mode, one more mission had been released last week and our top3 leaders you can find in this blog post about the first week of relax-July.
Relax and have some fun on July
This month we will release a lot of small and short missions, so you can check how creative can be CheckiO community with JavaScript.
New Easy Mission and IceBase LeaderBoard
We have released 8 new and easy missions in IceBase station and activate a LeaderBoard on the Island
Levels
CheckiO has a lot of features that become available, or unlocked, with higher levels. Here is a list of all the potential features and at which levels they become available to users.
Missions from kurosawa4434
We have finally two new missions for you thanks to kurosawa4434. You can create your own missions on CheckiO (you need to achieve level 9) and once approved they can become part of CheckiO Map.
Forum Tags
An improvements to make the forum not only a place where you can get help with solving missions but also a place where you can learn something new and meet other people who share your love for coding
Today is the hottest day of winter
Hot section, last mission in the left menu, quick following, opened missions and happy holidays :)
