Sergey Leschev

Tech Lead (Swift, TypeScript, SQL). LeetCode Ranking #Dev TOP 200 Global. Google Engineering Level: L7+ https://github.com/sergeyleschev

Joined on Dec 13, 2022 sergey.leschev@gmail.com https://github.com/sergeyleschev

Education

Belarusian State University

Work

Tech Lead

Sergey Leschev

Mar 19

LeetCode: 211. Design Add and Search Words Data Structure (and others)

#algorithms #swift #mobile

1 min read

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Sergey Leschev

Mar 18

Redux-like state container in SwiftUI: Connectors.

#swift #ios #mobile #programming

5 min read

Sergey Leschev

Mar 12

Using Container Views with Redux-like state container

#swift #ios #mobile #programming

6 2

2 min read

Sergey Leschev

Mar 12

Redux-like state container in SwiftUI. Container Views.

#swift #ios #mobile #programming

2 min read

Sergey Leschev

Feb 18

Redux-like state container in SwiftUI. Derived stores.

#swift #ios #mobile #programming

2 min read

Sergey Leschev

Feb 18

Redux-like state container in SwiftUI. Reducer composition.

#swift #ios #mobile #programming

2 min read

Sergey Leschev

Feb 18

Redux-like state container in SwiftUI. State composition.

#swift #ios #mobile #programming

1 min read

Sergey Leschev

Feb 18

Redux-like state container in SwiftUI. State normalization.

#swift #ios #mobile #programming

2 min read

Sergey Leschev

Feb 11

Redux-like state container in SwiftUI. Usage.

#swift #ios #mobile #programming

2 min read

Sergey Leschev

Feb 11

Redux-like state container in SwiftUI. Side effects.

#swift #ios #mobile #programming

6 2

2 min read

Sergey Leschev

Feb 11

Redux-like state container in SwiftUI. Unidirectional flow.

#swift #ios #mobile #programming

2 min read

Sergey Leschev

Feb 11

Redux-like state container in SwiftUI. Reducer and Actions.

#swift #ios #mobile #programming

2 min read

Sergey Leschev

Feb 11

Redux-like state container in SwiftUI. Basics.

#swift #ios #mobile #programming

2 min read

Sergey Leschev

Feb 7

SwiftUI & ChatGPT. The world is changing. Again.

#swift #ios #mobile #programming

4 min read

Sergey Leschev

Feb 4

Swift 5.7: Regex. Shorthands for optional unwrapping. Unlock existentials for all protocols.

#swift #ios #mobile #programming

9 1

2 min read

Sergey Leschev

Feb 4

Swift: Conforming a protocol to a protocol.

#swift #ios #mobile #programming

2 min read

Sergey Leschev

Feb 4

Swift: Associated types. Constraints.

#swift #ios #mobile #programming

2 min read

Sergey Leschev

Feb 4

Swift: Associated types. Example.

#swift #ios #mobile #programming

2 min read

Sergey Leschev

Feb 4

Swift: Associated types. Declaration.

#swift #ios #mobile #programming

2 min read

Sergey Leschev

Feb 4

Swift: Associated types.

#swift #mobile #ios #programming

2 min read

Sergey Leschev

Feb 4

Array of weak in Swift.

#swift #mobile #ios #programming

1 min read

Sergey Leschev

Jan 29

KeyPath in Swift: Usage.

#swift #mobile #ios #programming

5 min read

Sergey Leschev

Jan 29

Types of KeyPath in Swift.

#swift #mobile #ios #programming

3 min read

Sergey Leschev

Jan 29

KeyPath in Swift: Syntax.

#swift #mobile #ios #programming

3 min read

Sergey Leschev

Dec 17 '22

AnyObject, Any, any: any.

#swift #ios #programming #mobile

2 min read

Sergey Leschev

Dec 17 '22

AnyObject, Any, any: Any.

#swift #programming #ios #mobile

1 min read

Sergey Leschev

Dec 17 '22

AnyObject, Any, any: AnyObject.

#swift #programming #ios #mobile

2 min read

Sergey Leschev

Dec 17 '22

Libraries, Frameworks, Packages.

#swift #programming #ios #mobile

2 min read

Sergey Leschev

Dec 17 '22

Libraries, Frameworks, Packages: Frameworks.

#swift #programming #ios #mobile

2 min read

Sergey Leschev

Dec 17 '22

Libraries, Frameworks, Packages: Libraries.

#swift #programming #ios #mobile

2 min read

Sergey Leschev

Dec 17 '22

Libraries, Frameworks, Packages: Swift Package.

#swift #programming #ios #mobile

2 min read

Sergey Leschev

Dec 15 '22

Swift. Design Patterns. 🍬 Virtual Proxy

#swift #programming #computerscience #architecture

2 min read

Sergey Leschev

Dec 15 '22

Swift. Design Patterns. ☔ Protection Proxy

#swift #programming #computerscience #architecture

3 min read

Sergey Leschev

Dec 15 '22

Swift. Design Patterns. 🍃 Flyweight Pattern

#swift #programming #computerscience #architecture

3 min read

Sergey Leschev

Dec 15 '22

Swift. Design Patterns. 🎁 Facade Pattern

#swift #programming #computerscience #architecture

2 min read

Sergey Leschev

Dec 15 '22

Swift. Design Patterns. 🍧 Decorator Pattern

#swift #programming #computerscience #architecture

3 min read

Sergey Leschev

Dec 15 '22

Swift. Design Patterns. 🌿 Composite Pattern

#swift #programming #computerscience #architecture

3 min read

Sergey Leschev

Dec 15 '22

Swift. Design Patterns. 🌉 Bridge Pattern

#swift #programming #computerscience #architecture

3 min read

Sergey Leschev

Dec 15 '22

Swift. Design Patterns. 🔌 Adapter Pattern

#swift #programming #computerscience #architecture

3 min read

Sergey Leschev

Dec 14 '22

Swift. Design Patterns. 💍 Singleton

#swift #programming #computerscience #architecture

3 min read

Sergey Leschev

Dec 14 '22

Swift. Design Patterns. 🃏 Prototype Pattern

#swift #programming #computerscience #architecture

3 min read

Sergey Leschev

Dec 14 '22

Swift. Design Patterns. 🔂 Monostate Pattern

#swift #programming #computerscience #architecture

3 min read

Sergey Leschev

Dec 13 '22

Swift. Design Patterns. 🏭 Factory Method

#swift #programming #computerscience #architecture

3 min read

Sergey Leschev

Dec 13 '22

Swift. Design Patterns. 👷 Builder Pattern

#swift #programming #computerscience #architecture

3 min read

Sergey Leschev

Dec 13 '22

Swift. Design Patterns. 🌰 Abstract Factory

#swift #programming #computerscience #architecture

3 min read

Sergey Leschev

Dec 13 '22

Swift. Design Patterns. 🏃 Visitor Pattern

#swift #programming #computerscience #architecture

3 min read

Sergey Leschev

Dec 13 '22

Swift. Design Patterns. 📝 Template Method

#swift #programming #computerscience #architecture

3 min read

Sergey Leschev

Dec 13 '22

Swift. Design Patterns. 💡 Strategy Pattern

#swift #programming #computerscience #architecture

3 min read

Sergey Leschev

Dec 13 '22

Swift. Design Patterns. 🐉 State Pattern

#swift #programming #computerscience #architecture

3 min read

Sergey Leschev

Dec 13 '22

Swift. Design Patterns. 👓 Observer Pattern

#swift #programming #computerscience #architecture

3 min read

Sergey Leschev

Dec 13 '22

Swift. Design Patterns. 💾 Memento Pattern

#swift #programming #computerscience #architecture

3 min read

Sergey Leschev

Dec 13 '22

Swift. Design Patterns. 💐 Mediator Pattern

#swift #programming #computerscience #architecture

3 min read

Sergey Leschev

Dec 13 '22

Swift. Design Patterns. 🍫 Iterator Pattern

#swift #programming #computerscience #architecture

3 min read

Sergey Leschev

Dec 13 '22

Swift. Design Patterns. 🎶 Interpreter Pattern

#swift #programming #computerscience #architecture

3 min read

Sergey Leschev

Dec 13 '22

Swift. Design Patterns. 👫 Command Pattern.

#swift #programming #computerscience #architecture

3 min read

Sergey Leschev

Dec 13 '22

Swift. Design Patterns. 🐝 Chain Of Responsibility.

#swift #programming #computerscience #architecture

3 min read

4 Week Streak

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