Utility Types - Advanced TypeScript
Dmytro Danylov
View ChannelAbout
I'm a JavaScript software developer from Ukraine. I’ve been interested in programming since my childhood, because it gave me freedom to build something with which people can interact, and it didn’t require a big investment. All I needed was a computer and a C++ teach-myself book. This started my software development journey. After school, I received a Computer Science diploma and started my career in web development in 2009. Thus far in my career, I’ve worked for companies large and small, including Ciklum, Booking.com, Wix.com, and others. Also I've been working as a freelancer. For quite some time I wanted to start creating online courses to share my knowledge professionally. Today I'm doing my best to achieve this goal.
Latest Posts
Upgrade Your iPhone Experience
AI-recommended products based on this video

for Magsafe Car Mount【20 Strong Magnets 】Magnetic Phone Holder for Car Phone Holder Mount Dash【360°】Cell Phone Mount for Car Accessories,Car Mount for iPhone 16 Pro Max 15 14 13 12 Plus MagSafe Cases

Apple AirPods Pro 2 Wireless Earbuds, Bluetooth Headphones, Active Noise Cancellation, Transparency, Personalized Spatial Audio, High-Fidelity Sound, H2 Chip, USB-C Charging
![iPhone 16 15 Charger [Apple MFi Certified] 2 Pack USB C Wall Charger Block 6FT USB C to Type C Cable Compatible with iPhone 16 15 Pro Max,16e, AirPods Pr, iPad Pro12.9/11, Samsung/Android Phones](https://m.media-amazon.com/images/I/51GjkZn3ACL._AC_UL960_FMwebp_QL65_.jpg)
iPhone 16 15 Charger [Apple MFi Certified] 2 Pack USB C Wall Charger Block 6FT USB C to Type C Cable Compatible with iPhone 16 15 Pro Max,16e, AirPods Pr, iPad Pro12.9/11, Samsung/Android Phones

soundcore by Anker P20i True Wireless Earbuds, 10mm Drivers with Big Bass, Bluetooth 5.3, 30H Long Playtime, IPX5 Water-Resistant, 2 Mics for AI Clear Calls, 22 Preset EQs, Customization via App

Anker USB C Charger Cable (6ft 100W, 2Pack), USB 2.0 Type C Fast Charging Cable for iPhone 15 / 15Pro / 15Plus / 15ProMax MacBook Pro 2020, iPad Pro 2020, iPad Air 4, Samsung Galaxy S23+/S23 Ultra ClimatePartner certified

soundcore by Anker Q20i Hybrid Active Noise Cancelling Headphones, Wireless Over-Ear Bluetooth, 40H Long ANC Playtime, Hi-Res Audio, Big Bass, Customize via an App, Transparency Mode, Ideal for Travel

soundcore by Anker Q20i Hybrid Active Noise Cancelling Headphones, Wireless Over-Ear Bluetooth, 40H Long ANC Playtime, Hi-Res Audio, Big Bass, Customize via an App, Transparency Mode, Ideal for Travel

OHLPRO Tablet Holder for Car, iPad Holder for Car Air Vent Mount, Universal Dashboard Windshield 2-in-1 Cradle TPU Suction Sticky Gel for iPad/iPad mini Samsung Galaxy Size 6"- 10.5" iPad Car Holder

Magnetic Car Mount Air Vent Cell Phone Holder, Universal Vehicle Dash Dashboard Ac Airvent Cellphone Magic Stand with Clip Hook, for iPhone 16 15 Samsung Lenovo Google etc

AINOPE Phone Holder for Car Vent 2025 Gravity Air Vent Car Phone Holder Mount for iPhone 16 Pro Max with Vent Clip Hand Free Cell Phone Car Mount for iPhone 16 Plus Samsung S25 Ultra Car Accesorries
![Miracase Car Phone Mount, [2025 Upgraded Strong Military Grade Suction Cup] Long Arm Phone Holder for Car Dashboard Windshield Vent, Hands Free Cell Phone Holder Compatible with All Mobile Phones Global Recycled Standard](https://m.media-amazon.com/images/I/81oehGW5OLL._AC_UL960_FMwebp_QL65_.jpg)
Miracase Car Phone Mount, [2025 Upgraded Strong Military Grade Suction Cup] Long Arm Phone Holder for Car Dashboard Windshield Vent, Hands Free Cell Phone Holder Compatible with All Mobile Phones Global Recycled Standard

BASESAILOR iPhone 16 16e Car Charger Adapter 3Pack,USB to USBC Connector Type C Female to A Male Cable Converter for iPhone 15 14 Pro Max Plus,Apple Watch 10,Airpods 4,iPad mini 7,Samsung Galaxy S25

URVNS 240W USB C Car Charger, Super Fast Charging 4-Ports PD3.1 140W/PD3.0 100W PPS 45W QC65W Type-C Car Adapter for MacBook Pro Laptop iPhone 15 14 Max iPad Samsung Galaxy S24/23/22 Pixel etc

UGREEN 130W Car Charger USB C Fast Charger PD3.0 QC4.0 PPS Fast Charging Car Adapter with 100W USB C Cable Compatible with Dell XPS, MacBook, iPhone 16 15 14 Pro Max, Galaxy S25 S24 Ultra, iPad Pro
![VANMASS [85+LBS Strongest Suction & Clip] 2025 Upgrade Car Phone Holder [Patent & Safety Certs] Cell Phone Mount Truck Stand for Dashboard Windshield Vent for iPhone 16 Pro Max 15 14 13 12 Samsung](https://m.media-amazon.com/images/I/71bHSP1cRkL._AC_UL960_FMwebp_QL65_.jpg)
VANMASS [85+LBS Strongest Suction & Clip] 2025 Upgrade Car Phone Holder [Patent & Safety Certs] Cell Phone Mount Truck Stand for Dashboard Windshield Vent for iPhone 16 Pro Max 15 14 13 12 Samsung

4-in-1 Wireless Magnetic Power Bank 10800mAh Portable Charger with iWatch Charger, QC4.0+20W PD Fast Charging USB C Battery Pack for Magsafe, iPhone 16/15/14/13/12 Series, Apple Watch etc. (White)

eazpower for Magsafe Power Bank 10000mAh, Magnetic Battery Pack Wireless, 20W PD Fast Charging, Compact Portable Charger with Built-in Cables and Stand for iPhone 16/15/14/13/12/ Apple Watch/Airpods
![Spigen Case for Galaxy S25 Case, Rugged Armor MagFit [Fast Wireless Charging] Compatible with MagSafe - Black](https://m.media-amazon.com/images/I/81osE87mFrL._AC_UL960_FMwebp_QL65_.jpg)
Spigen Case for Galaxy S25 Case, Rugged Armor MagFit [Fast Wireless Charging] Compatible with MagSafe - Black
![Spigen Case for iPhone 16 Pro Max Case, Rugged Armor [MagFit] Compatible with MagSafe - Matte Black](https://m.media-amazon.com/images/I/71Gh0VOQtlL._AC_UL960_FMwebp_QL65_.jpg)
Spigen Case for iPhone 16 Pro Max Case, Rugged Armor [MagFit] Compatible with MagSafe - Matte Black

Anker 332 USB-C Hub (5-in-1) with 4K HDMI Display, 5Gbps - and 2 5Gbps USB-A Data Ports and for MacBook Pro, MacBook Air, Dell XPS, Lenovo Thinkpad, HP Laptops and More
![MRGLAS 2025 Upgraded Magsafe Car Mount Vacuum Suction Magnetic Phone Holder Car, 360° Foldable Adjustable Suction Cup Phone Stand [89+LBS Suction & 2800gf Magnetic] for Car Accessories iPhone17/16](https://m.media-amazon.com/images/I/71UbeT7ccLL._AC_UL960_FMwebp_QL65_.jpg)
MRGLAS 2025 Upgraded Magsafe Car Mount Vacuum Suction Magnetic Phone Holder Car, 360° Foldable Adjustable Suction Cup Phone Stand [89+LBS Suction & 2800gf Magnetic] for Car Accessories iPhone17/16

OHLPRO Tablet Car Mount Universal Tablet Holder for Car Windshield Dash Dashboard, 360 Degree Rotation,TPU Suction Gel Stick, for iPad Mini 4/3/2/1Samsung Galaxy Size 7"- 10.5" Tablet Mount

Magnetic Car Mount Air Vent Cell Phone Holder, Universal Vehicle Dash Dashboard Ac Airvent Cellphone Magic Stand with Clip Hook, for iPhone 16 15 Samsung Lenovo Google etc

AINOPE Phone Holder for Car Vent 2025 Gravity Air Vent Car Phone Holder Mount for iPhone 16 Pro Max with Vent Clip Hand Free Cell Phone Car Mount for iPhone 16 Plus Samsung S25 Ultra Car Accesorries
![[Apple MFi Certified] Lightning to HDMI Adapter for iPhone, 1080P Digital AV Adapter iPhone HDMI Adapter Video HDMI Sync Screen Connector Compatible with iPhone 14/13/12/X/8 NO Need Power Supply](https://m.media-amazon.com/images/I/41FjGWUIKnL._AC_UL960_FMwebp_QL65_.jpg)
[Apple MFi Certified] Lightning to HDMI Adapter for iPhone, 1080P Digital AV Adapter iPhone HDMI Adapter Video HDMI Sync Screen Connector Compatible with iPhone 14/13/12/X/8 NO Need Power Supply

Anker USB C Charger Cable (6ft 100W, 2Pack), USB 2.0 Type C Fast Charging Cable for iPhone 15 / 15Pro / 15Plus / 15ProMax MacBook Pro 2020, iPad Pro 2020, iPad Air 4, Samsung Galaxy S23+/S23 Ultra ClimatePartner certified
![Anker USB C Cable, [2-Pack, 6 ft] Type C Charger Premium Nylon USB Cable, USB A to Type C Charging Cable Fast Charge for Samsung Galaxy S10 S10+ / Note 8, LG V20 and Other USB C Charger (Black)](https://m.media-amazon.com/images/I/71N7xhCJnoL._AC_UL960_FMwebp_QL65_.jpg)












![Exploring Advanced TypeScript Concepts - Guards, Utility Functions, and More [Typescript Tutorial]](https://imgz.pc97.com/?width=500&fit=cover&image=https://i.ytimg.com/vi/eJ6R1knfsoc/hqdefault.jpg)








