• Blog

3 Ways you can Use Emails on CheckiO

How emails can become a great tool used to your advantage.
21st February 2018 10:44
by oduvan

10 Stand Out JavaScript Bloggers And Their Best Posts Of 2017

An overview of 10 popular JavaScript bloggers and their TOP articles in 2017.
7th December 2017 14:07
by oduvan

10 common beginner mistakes in JavaScript

Highlighting some of the mistakes that are commonly made by the beginners in JavaScript.
19th October 2017 14:25
by oduvan

5 Ways of Error Handling in JavaScript

The exploration of pitfalls and good error handling practices in JavaScript.
12th October 2017 12:55
by oduvan

JavaScript best practices: function

JavaScript functions and some of the good and bad practices of their usage.
5th October 2017 14:46
by oduvan

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.
28th September 2017 15:25
by oduvan

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.
21st September 2017 07:40
by oduvan

Creating Missions on CheckiO

Going through the journey of the every new mission on CheckiO.
7th September 2017 08:09
by oduvan

EcmaScript 2018. Template Literal Revision

Finishing the series of articles devoted to EcmaScript innovations. First look at ES 2018.
31st August 2017 14:14
by oduvan

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
22nd August 2017 06:32
by oduvan

EcmaScript 2017. String padding

Continuing the revision of the latest EcmaScript 8 features. A closer look at the String padding function.
15th August 2017 10:38
by oduvan

EcmaScript 2017. Object.values/ Object.entries

The latest feature set of EcmaScript 8. Taking a closer look at the function Object.values/Object.entries.
8th August 2017 06:51
by oduvan

Crazy August

Results of relaxing July, new missions and how crazy August will look like.
1st August 2017 13:41
by oduvan

4 new short missions

4 new short missions for you this week
27th July 2017 21:33
by oduvan

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.
13th July 2017 09:51
by oduvan

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.
6th July 2017 11:24
by oduvan

3 new missions

3 new missions, UX improvements and Web Plugin upgrade...
29th June 2017 13:25
by oduvan

New Easy Mission and IceBase LeaderBoard

We have released 8 new and easy missions in IceBase station and activate a LeaderBoard on the Island
16th May 2017 12:07
by oduvan

Ice Base

Just a quick message for you about a new station on CheckiO.
16th March 2017 07:47
by oduvan


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.
9th March 2017 20:29
by oduvan