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Software is changing rapidly. Follow along as we figure out how programmers can become the value creators of tomorrow.

I am a Swedish university lecturer with a PhD in Information Systems.

Note: Many links on my YouTube channel are affiliate links. Purchasing something via these links has no additional cost for you but gives me a commission.

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programming
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tutorials
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web dev

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Featured video

The Only Time You Should Use Polymorphism

Christopher Okhravi

99,136 views

1 year ago

Popular videos
Christopher Okhravi
Strategy Pattern – Design Patterns (ep 1)
00:35:11
Strategy Pattern – Design Patterns (ep 1)

1,559,927 views

8 years ago

Christopher Okhravi
Observer Pattern – Design Patterns (ep 2)
00:49:47
Observer Pattern – Design Patterns (ep 2)

586,222 views

8 years ago

Christopher Okhravi
Factory Method Pattern – Design Patterns (ep 4)
00:27:21
Factory Method Pattern – Design Patterns (ep 4)

572,861 views

7 years ago

Christopher Okhravi
The absolute basics of HTML, CSS and JavaScript
00:24:21
The absolute basics of HTML, CSS and JavaScript

516,945 views

11 years ago

Christopher Okhravi
Decorator Pattern – Design Patterns (ep 3)
00:54:35
Decorator Pattern – Design Patterns (ep 3)

500,817 views

8 years ago

Christopher Okhravi
Abstract Factory Pattern – Design Patterns (ep 5)
00:25:54
Abstract Factory Pattern – Design Patterns (ep 5)

325,274 views

7 years ago

Christopher Okhravi
Command Pattern – Design Patterns (ep 7)
00:39:12
Command Pattern – Design Patterns (ep 7)

280,576 views

7 years ago

Christopher Okhravi
Singleton Pattern – Design Patterns (ep 6)
00:20:09
Singleton Pattern – Design Patterns (ep 6)

259,177 views

7 years ago

Christopher Okhravi
Adapter Pattern – Design Patterns (ep 8)
00:26:36
Adapter Pattern – Design Patterns (ep 8)

253,390 views

7 years ago

Christopher Okhravi
Facade Pattern – Design Patterns (ep 9)
00:16:19
Facade Pattern – Design Patterns (ep 9)

188,246 views

7 years ago

Christopher Okhravi
Proxy Pattern – Design Patterns (ep 10)
00:37:35
Proxy Pattern – Design Patterns (ep 10)

169,392 views

7 years ago

Christopher Okhravi
Liskov's Substitution Principle | SOLID Design Principles (ep 1 part 1)
00:16:08
Liskov's Substitution Principle | SOLID Design Principles (ep 1 part 1)

162,283 views

7 years ago

Videos
Christopher Okhravi
Working Software Is Not The Primary Measure of Progress
00:14:09
Working Software Is Not The Primary Measure of Progress

11,528 views

8 months ago

Christopher Okhravi
Rules Have Reasons (Always Ask Why)
00:11:49
Rules Have Reasons (Always Ask Why)

14,308 views

9 months ago

Christopher Okhravi
When Microsoft Violated Liskov Substitution Principle in .NET
00:18:16
When Microsoft Violated Liskov Substitution Principle in .NET

43,874 views

11 months ago

Christopher Okhravi
Liskov Substitution Principle
00:20:16
Liskov Substitution Principle

16,794 views

11 months ago

Christopher Okhravi
8 Wastes of Lean (for Software Developers)
00:10:54
8 Wastes of Lean (for Software Developers)

10,165 views

11 months ago

Christopher Okhravi
Only Use Inheritance If You Want Both of These
00:09:10
Only Use Inheritance If You Want Both of These

25,261 views

11 months ago

Christopher Okhravi
7 Tips to Grow as a Developer
00:07:25
7 Tips to Grow as a Developer

16,952 views

1 year ago

Christopher Okhravi
Depend on Abstractions not Concretions (Framework)
00:11:56
Depend on Abstractions not Concretions (Framework)

19,501 views

1 year ago

Christopher Okhravi
3 Reasons WHY Waterfall Doesn't Work
00:11:30
3 Reasons WHY Waterfall Doesn't Work

5,256 views

1 year ago

Christopher Okhravi
They Knew Waterfall Didn't Work
00:06:36
They Knew Waterfall Didn't Work

13,243 views

1 year ago

Christopher Okhravi
Always Use Interfaces
00:08:08
Always Use Interfaces

52,075 views

1 year ago

Christopher Okhravi
Covariance and Contravariance
00:13:31
Covariance and Contravariance

21,578 views

1 year ago

Object Oriented Design Patterns (Screencasts)
Christopher Okhravi
Strategy Pattern Screencast – OO Design Patterns Screencasts (ep 1)
00:51:36
Strategy Pattern Screencast – OO Design Patterns Screencasts (ep 1)

50,271 views

6 years ago

Christopher Okhravi
Strategy Pattern (in real life) Screencast – OO Design Patterns Screencasts (ep 2)
00:51:05
Strategy Pattern (in real life) Screencast – OO Design Patterns Screencasts (ep 2)

20,910 views

6 years ago

Christopher Okhravi
Observer Pattern Screencast – OO Design Patterns Screencasts (ep 3)
01:11:26
Observer Pattern Screencast – OO Design Patterns Screencasts (ep 3)

9,028 views

6 years ago

Christopher Okhravi
Observer Pattern (in C#.NET) Screencast – OO Design Patterns Screencasts (ep 4)
00:30:01
Observer Pattern (in C#.NET) Screencast – OO Design Patterns Screencasts (ep 4)

5,007 views

6 years ago

Christopher Okhravi
Observer Pattern (in C#.NET) Screencast – OO Design Patterns Screencasts (Ep5)
01:06:03
Observer Pattern (in C#.NET) Screencast – OO Design Patterns Screencasts (Ep5)

4,944 views

6 years ago

Game Development with Functional Programming in JavaScript
Christopher Okhravi
Coding Snake in Functional JavaScript (Part 1)
00:32:40
Coding Snake in Functional JavaScript (Part 1)

18,630 views

7 years ago

Christopher Okhravi
Coding Snake in Functional JavaScript (Part 2)
00:38:06
Coding Snake in Functional JavaScript (Part 2)

3,005 views

7 years ago

Christopher Okhravi
Coding Snake in Functional JavaScript (Part 3)
00:22:25
Coding Snake in Functional JavaScript (Part 3)

2,407 views

7 years ago

Design Patterns in Object Oriented Programming
Christopher Okhravi
Strategy Pattern – Design Patterns (ep 1)
00:35:11
Strategy Pattern – Design Patterns (ep 1)

1,559,927 views

8 years ago

Christopher Okhravi
Observer Pattern – Design Patterns (ep 2)
00:49:47
Observer Pattern – Design Patterns (ep 2)

586,222 views

8 years ago

Christopher Okhravi
Decorator Pattern – Design Patterns (ep 3)
00:54:35
Decorator Pattern – Design Patterns (ep 3)

500,817 views

8 years ago

Christopher Okhravi
Factory Method Pattern – Design Patterns (ep 4)
00:27:21
Factory Method Pattern – Design Patterns (ep 4)

572,861 views

7 years ago

Christopher Okhravi
Abstract Factory Pattern – Design Patterns (ep 5)
00:25:54
Abstract Factory Pattern – Design Patterns (ep 5)

325,274 views

7 years ago

Christopher Okhravi
Singleton Pattern – Design Patterns (ep 6)
00:20:09
Singleton Pattern – Design Patterns (ep 6)

259,177 views

7 years ago

Christopher Okhravi
Command Pattern – Design Patterns (ep 7)
00:39:12
Command Pattern – Design Patterns (ep 7)

280,576 views

7 years ago

Christopher Okhravi
Adapter Pattern – Design Patterns (ep 8)
00:26:36
Adapter Pattern – Design Patterns (ep 8)

253,390 views

7 years ago

Christopher Okhravi
Facade Pattern – Design Patterns (ep 9)
00:16:19
Facade Pattern – Design Patterns (ep 9)

188,246 views

7 years ago

Christopher Okhravi
Proxy Pattern – Design Patterns (ep 10)
00:37:35
Proxy Pattern – Design Patterns (ep 10)

169,392 views

7 years ago

Christopher Okhravi
Bridge Pattern – Design Patterns (ep 11)
00:52:04
Bridge Pattern – Design Patterns (ep 11)

151,570 views

7 years ago

Christopher Okhravi
Structural Patterns (comparison) – Design Patterns (ep 12)
00:36:22
Structural Patterns (comparison) – Design Patterns (ep 12)

97,504 views

7 years ago

Ramda JS Tutorial
Christopher Okhravi
Ramda JS Tutorial – Part 1 (__, curry, add)
00:13:58
Ramda JS Tutorial – Part 1 (__, curry, add)

36,046 views

7 years ago

Christopher Okhravi
Ramda JS Tutorial – Part 2 (addIndex, adjust)
00:13:45
Ramda JS Tutorial – Part 2 (addIndex, adjust)

8,258 views

7 years ago

Christopher Okhravi
Ramda JS Tutorial – Part 3 (all, allPass)
00:19:51
Ramda JS Tutorial – Part 3 (all, allPass)

5,196 views

7 years ago

Christopher Okhravi
Ramda JS Tutorial – Part 4 (always, and, any, anyPass)
00:11:35
Ramda JS Tutorial – Part 4 (always, and, any, anyPass)

3,635 views

7 years ago

Christopher Okhravi
Ramda JS Tutorial – Part 5 (ap)
00:21:11
Ramda JS Tutorial – Part 5 (ap)

3,669 views

7 years ago

Christopher Okhravi
Ramda JS Tutorial – Part 6 (aperture, append, apply, unapply)
00:14:18
Ramda JS Tutorial – Part 6 (aperture, append, apply, unapply)

2,648 views

7 years ago

Christopher Okhravi
Ramda JS Tutorial – Part 7 (applySpec, applyTo)
00:07:03
Ramda JS Tutorial – Part 7 (applySpec, applyTo)

2,221 views

7 years ago

Christopher Okhravi
Ramda JS Tutorial – Part 8 (ascend, descend, sort)
00:07:28
Ramda JS Tutorial – Part 8 (ascend, descend, sort)

2,096 views

7 years ago

Christopher Okhravi
Ramda JS Tutorial – Part 9 (assoc, dissoc, assocPath, dissocPath)
00:08:01
Ramda JS Tutorial – Part 9 (assoc, dissoc, assocPath, dissocPath)

2,305 views

7 years ago

Christopher Okhravi
Ramda JS Tutorial – Part 10 (binary, unary, nAry)
00:13:24
Ramda JS Tutorial – Part 10 (binary, unary, nAry)

1,434 views

7 years ago

Christopher Okhravi
Ramda JS Tutorial – Part 11 (bind, call, apply)
00:15:01
Ramda JS Tutorial – Part 11 (bind, call, apply)

1,630 views

7 years ago

Christopher Okhravi
Ramda JS Tutorial – Part 12 (both, flip)
00:14:38
Ramda JS Tutorial – Part 12 (both, flip)

1,351 views

7 years ago

Vue.js – The Hard Way
Christopher Okhravi
Vue.js – The Hard Way (Ep1)
00:28:23
Vue.js – The Hard Way (Ep1)

24,533 views

6 years ago

Christopher Okhravi
Vue.js – The Hard Way (Ep2)
00:45:20
Vue.js – The Hard Way (Ep2)

7,636 views

6 years ago

Christopher Okhravi
Vue.js – The Hard Way (Ep3)
00:33:37
Vue.js – The Hard Way (Ep3)

4,039 views

6 years ago

Christopher Okhravi
Vue.js – The Hard Way (Ep4)
00:58:15
Vue.js – The Hard Way (Ep4)

3,489 views

6 years ago

Christopher Okhravi
Vue.js – The Hard Way (Ep5)
01:02:50
Vue.js – The Hard Way (Ep5)

2,831 views

6 years ago

Christopher Okhravi
Vue.js – The Hard Way (Ep6)
00:44:34
Vue.js – The Hard Way (Ep6)

2,247 views

6 years ago

Christopher Okhravi
Vue.js – The Hard Way (Ep7)
01:05:39
Vue.js – The Hard Way (Ep7)

1,768 views

6 years ago

Christopher Okhravi
Vue.js – The Hard Way (Ep8)
00:43:48
Vue.js – The Hard Way (Ep8)

1,469 views

6 years ago

Christopher Okhravi
Vue.js – The Hard Way (Ep9)
00:59:44
Vue.js – The Hard Way (Ep9)

1,294 views

6 years ago

Christopher Okhravi
Vue.js – The Hard Way (Ep10)
00:38:16
Vue.js – The Hard Way (Ep10)

1,187 views

6 years ago

Christopher Okhravi
Vue.js – The Hard Way (Ep11)
00:52:13
Vue.js – The Hard Way (Ep11)

1,317 views

6 years ago

Christopher Okhravi
Vue.js – The Hard Way (Ep12)
00:46:38
Vue.js – The Hard Way (Ep12)

1,396 views

6 years ago

SOLID Design Principles

CODE WALKS | Casual talks on programming
Christopher Okhravi
Currying & Parameter Ordering | Code Walks 064
00:10:17
Currying & Parameter Ordering | Code Walks 064

7,318 views

7 years ago

Christopher Okhravi
Make The World Better | Code Walks 063
00:14:10
Make The World Better | Code Walks 063

3,904 views

7 years ago

Christopher Okhravi
DWIM vs Robustness Principle | Code Walks 062
00:07:02
DWIM vs Robustness Principle | Code Walks 062

1,916 views

7 years ago

Christopher Okhravi
Robustness Principle Is WRONG? | Code Walks 061
00:06:43
Robustness Principle Is WRONG? | Code Walks 061

2,744 views

7 years ago

Christopher Okhravi
Top 3 Ideas in Programming | Code Walks 060
00:08:14
Top 3 Ideas in Programming | Code Walks 060

9,667 views

7 years ago

Christopher Okhravi
Go Full Circle | Code Walks 059
00:12:24
Go Full Circle | Code Walks 059

3,271 views

7 years ago

Christopher Okhravi
Don't Fear Deleting code | Code Walks 058
00:06:08
Don't Fear Deleting code | Code Walks 058

2,952 views

7 years ago

Christopher Okhravi
VR Programming & The Desk Generation | Code Walks 057
00:16:49
VR Programming & The Desk Generation | Code Walks 057

2,682 views

8 years ago

Christopher Okhravi
Message Obsession | Code Walks 056
00:04:53
Message Obsession | Code Walks 056

2,928 views

8 years ago

Christopher Okhravi
Primitive Obsession | Code Walks 055
00:10:45
Primitive Obsession | Code Walks 055

7,081 views

8 years ago

Christopher Okhravi
Bash Programming & The UNIX Chainsaw | Code Walks 054
00:08:04
Bash Programming & The UNIX Chainsaw | Code Walks 054

2,442 views

8 years ago

Christopher Okhravi
Perfect Software & Time Value of Money | Code Walks 053
00:08:30
Perfect Software & Time Value of Money | Code Walks 053

1,267 views

8 years ago