[Front-End System Design] - Chat application
Front-End Engineer
View ChannelAbout
Hi Folks. My name is Ray. I started this channel during preparation for my on-site interviews for FAANG companies. I struggled to find any useful information on the internet about front-end interviews. I decided to make my own content, helping people like me prepare for the interview and improve their knowledge. I will post my interview tips and notes on this channel, interesting content on Javascript language, and many more. So much useful info will come up soon. I also have Telegram Channel where I post more often: https://t.me/frontend_engineer_blog Thank you for joining, and may the force be with you :) Copyright: all material can be freely used by supplying a link to this channel. Thank you for understanding.
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

3 in 1 Charging Station for iPhone, Wireless Charger for iPhone 16 15 14 13 12 11 X Pro Max & Apple Watch - Charging Stand Dock for AirPods Global Recycled Standard

3 in 1 Charging Station for iPhone, Wireless Charger for iPhone 16 15 14 13 12 11 X Pro Max & Apple Watch - Charging Stand Dock for AirPods (Blue) Global Recycled Standard
![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 P31i by Anker, Real-Time Adaptive Noise Cancelling, Hi-Res Sound, Translation Earbuds, 50H Playtime, Wireless Earbuds, Bluetooth Earphones, Spatial Audio, Fast Charging, IP55 ClimatePartner certified

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
![Spigen Spigen Tempered Glass Screen Protector [GlasTR EZ FIT] designed for Nintendo Switch 2 (2025) - 2 Pack](https://m.media-amazon.com/images/I/61L0hIGSbYL._AC_UL1500_FMwebp_QL65_.jpg)
Spigen Spigen Tempered Glass Screen Protector [GlasTR EZ FIT] designed for Nintendo Switch 2 (2025) - 2 Pack

Beats Fit Pro - True Wireless Noise Cancelling Earbuds - Active Noise Cancelling - Sweat Resistant Earphones, Compatible with Apple & Android, Class 1 Bluetooth®, Built-in Microphone - Beats White

Apple AirPods Pro 2 Wireless Earbuds, Bluetooth Headphones, Active Noise Cancellation, Transparency, Personalized Spatial Audio, High-Fidelity Sound, H2 Chip, USB-C Charging

Adaptive Hybrid Active Noise Canceling Wireless Earbuds, 6 Mics ENC Clear Call Ear Buds, Hi-Res Audio Deep Bass Bluetooth 5.4 Headphones, 48H Playtime, Wireless Charging, Multipoint Connection, Black

SanDisk 64GB Extreme PRO SDXC UHS-I Memory Card - C10, U3, V30, 4K UHD, SD Card - SDSDXXU-064G-GN4IN

SanDisk 128GB Extreme PRO SDXC UHS-I Memory Card - C10, U3, V30, 4K UHD, SD Card - SDSDXXD-128G-GN4IN

SanDisk 4TB Extreme Portable SSD - Up to 1050MB/s, USB-C, USB 3.2 Gen 2, IP65 Water and Dust Resistance, Updated Firmware - External Solid State Drive - SDSSDE61-4T00-G25
![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)
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)

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

