Redux is a library for state management, it controls in a single object — store; no matter how deep you are, no need for lifting the state up. What is Redux? redux creates a store, like a database, so sub-components can directly access values through the store instead of relying on parents(grandparents), whereas…

It has been almost two years since I started working in tech, and I have no regrets about the career moves I made. Over the past weekend, I gathered some of the studying notes that I took in the past, and posted them on Medium. Hoped these notes would be…

Share some coding notes I took in the past which helped me understand the concepts, and these are questions you may be asked during interviews. React What is React? A User Interface Library (for building user interfaces) Component Architecture (different functions control different parts of UI) Data Flow in React (top to bottom one-way…

Share some coding notes I took in the past which helped me understand the concepts, and these are questions you may be asked during interviews. JavaScript Behind the Scene JavaScript Mechanism (how to handle the sync and async code) The event loops behind the browser handle the sync and async JavaScript code, like when the JS engine that is built in the browser (for…

Share some coding notes I took in the past which helped me understand the concepts, and these are questions you may be asked during interviews. HTML What does a DOCTYPE do? when we have a doctype, it is “information” to the browser about what document type to expect. not case-sensitive. href & target in <a> tag. _blank (new tab) and _self (current…

A computer is an electromechanical device that takes input does processing and produces output. Inside of a Computer Tertiary Storage — added in, like CD, DVD, offline storage system Power supply — 12 volts or 5 volts Video Card/GPU — connects to the screen, stores information to display on the screen Mainboard/Motherboard — physical…

Always keep performance in mind during development. How Browser Render Content: Send the request along with your IP address to DNS Lookup (phone book for the web) ISP (Internet Service Providers) cached DNS info — based on your IP address near you TCP handshake: the temporary connection that works together, to exchange information like…

How do we get networks at home? What connects networks that allow us to exchange data and get the information we need from WAN to LAN? What is the process for the three-way handshake in TCP? LAN / WAN Router — the gateway allows LAN to talk to the outside network LAN — Router — WAN — Router — LAN A Router…