Andrew Harchenko (Tomsk)'s Profile on SoloLearn
Andrew Harchenko (Tomsk)

Andrew Harchenko (Tomsk)

16
84003 XP

My Courses

PHP

39103 XP

Java

9160 XP

Ruby

9144 XP

JavaScript

6665 XP

HTML

3857 XP

Python 3

3360 XP

C++

3062 XP

CSS

794 XP

C#

582 XP

jQuery

255 XP

SQL

200 XP

Swift 4

69 XP

C

15 XP

React + Redux

0 XP


My Codes

Fix the Errors

Last Modified: 02/02/2019 04:48:00

5

Order of Exceptions test

Last Modified: 08/26/2018 18:05:37

14

web
Chess without DOM traversing

Last Modified: 08/26/2018 17:56:20

44

php
PHP. Examples in arithmetics with floats (their "nature")

Last Modified: 08/26/2018 17:55:24

23

Interesting. Override in one instance. Not in inherited smth...

Last Modified: 08/26/2018 17:53:13

16

web
function1 returns function2 which is dependent on arguments of function1

Last Modified: 08/26/2018 17:52:30

5

abstractClassInTheMiddle(ofInheritance?)

Last Modified: 08/26/2018 17:50:02

9

py
Example with prevention from getting indexes out of bounds.

Last Modified: 08/26/2018 17:45:53

17

cpp
No ArrayIndexOutOfBounds in CPP (already forgot it! :-))

Last Modified: 08/26/2018 17:45:25

5

java interface implementation or inheritance by interface

Last Modified: 08/26/2018 17:44:48

13

kt
Wow, now we have Kotlin too

Last Modified: 05/16/2018 12:52:16

6

web
animate with variable (JSON)

Last Modified: 09/28/2017 01:45:12

37

rb
Test Ruby

Last Modified: 09/28/2017 01:41:14

8

web
slider with addEventListener (*)

Last Modified: 09/28/2017 01:40:12

40

web
multiple (9) backgrounds test

Last Modified: 09/28/2017 01:39:57

33

some java equality tests (by K Akbas, with my addition of 3 lines)

Last Modified: 09/28/2017 01:39:16

11

web
QZ. JS. A little bit wrong...

Last Modified: 09/28/2017 01:37:24

17

web
Chess without DOM for Evheniy Oleynik

Last Modified: 08/07/2017 22:47:12

13

web
Eh... Quiz. JS. Another one wrong...

Last Modified: 08/03/2017 00:28:20

11

rb
Assignment Speed Test (taken from Robert Russel here)

Last Modified: 06/12/2017 11:34:26

5

py
Python. 2 new empty (nearly empty) Objects are not equal.

Last Modified: 06/10/2017 15:22:54

9

php
PHP. 2 new empty Objects ARE EQUAL.

Last Modified: 06/10/2017 13:08:15

12

Java. 2 new empty Objects are not equal.

Last Modified: 06/10/2017 13:07:50

7

cs
C#. 2 new empty Objects are not equal.

Last Modified: 06/10/2017 12:59:15

9

rb
Ruby. 2 new empty Objects are not equal.

Last Modified: 06/10/2017 12:55:15

7

web
eval() (variable variable name)

Last Modified: 06/08/2017 22:55:59

10

QZ. Checked a reason of an error (just y is not static!) :-)

Last Modified: 06/07/2017 12:35:06

6

php
php dark template

Last Modified: 06/06/2017 18:43:14

9

php
QZ. PHP. 10099100???

Last Modified: 06/02/2017 17:45:15

13

QZ. wrong one in java (space is not in the answer)

Last Modified: 05/31/2017 17:57:56

6

constructors with non void return type... are NOT constructors :-)

Last Modified: 05/29/2017 20:36:53

11

print null (literal?)

Last Modified: 05/28/2017 14:04:04

8

QZ.ArrayList_size(after_Initialization_and_after_adding_to_it)

Last Modified: 05/23/2017 22:21:28

12

QZ.check_quiz(ref_equivalence-no,but_moreOrEqual&lessOrEqual-yes)

Last Modified: 05/23/2017 22:19:40

8

QZ.ProofThatAnswerIs[NOT!]1

Last Modified: 05/23/2017 22:17:56

13

web
Interesting (strange), but null here is not an obj.that gives true

Last Modified: 05/23/2017 22:16:04

7

QZ. What args are there? (Empty arr, so null, but it is like some args are there)

Last Modified: 05/23/2017 22:13:29

8

QZ. see what's outputted (not sum!) :)

Last Modified: 05/23/2017 22:11:26

5

QZ. byte+byte is int

Last Modified: 05/23/2017 22:10:58

13

QZ. Scope (But isn't it always passed by reference?) Objects in local scope...

Last Modified: 05/23/2017 22:09:55

6

web
test SVG - freeze vs remove

Last Modified: 04/01/2017 09:32:12

20

some more quizzes checking ;-)

Last Modified: 03/27/2017 19:34:09

18

quiz test

Last Modified: 03/21/2017 11:31:09

15

Short-circuiting of conditional operators (Now here is only one example for OR)

Last Modified: 03/03/2017 06:54:05

13

py
lambda_temp_test

Last Modified: 02/20/2017 08:33:31

15

py
Count percentage of Capital letters too - var 2 (lowercasing text)

Last Modified: 02/19/2017 18:19:14

16

py
Count percentage of Capital letters too - var 1 (without lowercasing text)

Last Modified: 02/19/2017 18:13:23

13

py
round examples (additional to min, max, abs, sum)

Last Modified: 02/18/2017 09:39:58

15

py
IMPORTANT - Logical operators precedence! 1 NOT 2 AND 3 OR

Last Modified: 01/28/2017 23:57:14

128

web
temp (ternary in animate)

Last Modified: 01/20/2017 19:37:40

13

web
undefined attr after removing

Last Modified: 01/16/2017 07:46:12

13

web
border-radius with transparency

Last Modified: 01/15/2017 13:40:39

18

web
padding-box vs border-box

Last Modified: 01/15/2017 11:52:35

18


My Certificates

CSS
CSS
Issued: 26 January, 2017
jQuery
jQuery
Issued: 20 January, 2017
C#
C#
Issued: 28 September, 2016
SQL
SQL
Issued: 08 March, 2016
Java
Java
Issued: 28 February, 2016
HTML
HTML
Issued: 20 December, 2015
C++
C++
Issued: 19 December, 2015
PHP
PHP
Issued: 05 December, 2015
JavaScript
JavaScript
Issued: 24 November, 2015

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