What happens when you navigate to an URL
This is a classical question in an interview. We can concatenate the topics all above in this theme:Do the DNS query first, it will offer the most suitable IP address with the intelligent DNS ...
PHP, JS, CSS, Python, and Machine Learning Technology
Postman-checking-protected-routes-from-backend
How to get-the-token-in-postman-whenever-i-use-middleware-in-my-private-routes, so I can check from back-end that my secured authenticated routes ( secured with Passport.authenticate middleware) are ...
How to Check HTTP Request and Response on Chrome?
Open a webpage ( say https://github.com/rohan-paul ) in Google Chrome and go to “View > Developer > Developer Tools” menu. You can also open the developer console by right clicking on the page ...
What Does the POST Method Do?
Aapart from GET, there are other types of HTTP methods including: HEAD POST PUT DELETE CONNECT OPTIONS TRACEWhat Does the PUT Method Do? The PUT method completely replaces whatever currently ...
TCP (Transmission Control Protocol) vs HTTP (HyperText Transfer Protocol)
1. The most fundamental difference between the two is that TCP and HTTP works at different layers, i.e, they have independent (and radically different ) tasks to perform. TCP is a transport-layer ...
HTTP Status Error Codes
The HTTP status codes are developed as per the Internet standards defined by Internet Engineering Task Force (IETF). They are classified into five different categories as below: 1xx series – ...
HTTP Status Codes
The HTTP status codes are developed as per the Internet standards defined by Internet Engineering Task Force (IETF). They are classified into five different categories as below: 1xx series – ...
HTTP-Status-Codes-Understanding-Express-res.status
The res object represents the HTTP response that an Express app sends when it gets an HTTP request. Source: https://www.tutorialspoint.com/nodejs/nodejs_response_object.htm res.status(code) ...
What is that HTTPS?
HTTP is a method for encoding and transporting data between a client and a server. It is a request/response protocol: clients issue requests and servers issue responses with relevant content and ...
JS to TypeScript
Normally, we can put normal JS code and get no help from what TypeScript has to offer. In order to TS to force us to actually type our code, we need to change the ‘tsconfig.json’ file. In particular, ...
What are Thunks?
Thunks are a functional programming technique used to delay computation. Instead of performing some work now, you produce a function body or unevaluated expression (the “thunk”) which can optionally ...
Redux-thunk-basic
Thus, in summary there are two parts to Redux-Thunk:A thunk creator, which is an action creator that returns a thunk (a.k.a. asynchronous action creators)The thunk itself, ...
mapStateToProps-how-exactly-it-gets-the-state-from-reducers
How exactly does mapStateToProps know which is the state variable that I am talking about. In other words, when I have many reducers file how each component, will get its specific states from ...
The state argument of mapStateToProps(state)
mapStateToProps() is a utility which helps your component get updated state(which is updated by some other components),mapDispatchToProps() is a utility which will help your component to fire an ...
mapStateToProps-basic-understanding
All mapStateToProps() does is, it takes a piece from the App's single state-tree i.e. the store and turn this into a component prop, so I can use it in this current component as a regular prop. ...
mapStateToProps()
Basically with mapDispatchToProps I connect a Redux action to a React component. mapDispatchToProps function let's us inject certain props into the React component that can dispatch actions. ...
Flux is a pattern and Redux
Flux is a pattern and Redux is a library. Flux is a fancy name for the observer pattern modified a little bit to fit React. Both Flux and Redux have actions. Actions can be compared to events (or ...
Dispatch(action)
https://redux.js.org/api-reference/store#dispatch dispatch() is one of the 4 methods of redux-store. dispatch() is the method used to dispatch actions and trigger state changes to the ...
CreateStore (reducer, [preloadedState], [enhancer])
We create a store, using the createStore function. We pass it our reducer, and then use the compose function to create a single function from two other functions. It takes other middlewares and ...
Container-component
And container is a component , where I am using a Redux state inside of a React component. Because note, while we have the application state in redux store, but here in this component I am again ...
