About Node js

naimur202163 — Thu, 23 Dec 2021 12:21:24 +0000

                CRUD Operations

Crud operation used in backend server for delete and update.post or get api form the backend server. Crud is an acronym that comes from the world of computer programming ,and refers to the four functions that are considered necessary to implement a persistent application: create, read, update and delete.

JWT

Mainly jwt is a one type of token format. It is a standardized authorization protocol which can use JWT as a token; it uses server-side and client-side storage. If we want to do real logout you must go with jwt.we use jwt for authentication to prevent our web site from hacker by using firebase
Mongoose
Mongoose is a one type of node based system . It is js-based object data modeling) library for a MongoDB. It is akin to an Object Relational Mapper (ORM) linke SQLAlchemy for traditional SQL databases. The problem is mongoose aims to solve is allowing developers to an enforce a specific schema of the application layer.
MySql
For accessing any type of database there are GUI tools that are more convenient and time-saving than Command Line tools.In GUI tools are the ready-to-use visual interfaces which can be easily accessed by users though even if they don't have much technical knowledge. There are so many tools available to access the MySQL database.
Express
Express is node framwork .it is very easy than raw node js system .By using node express js we can build real time web application using express js easily Express is a minimal and flexible Node js.In web application framework that provides a robust set of features for web mobile applications.
Node
Node is a device or data point in a big network.In networking a node is either a connection point or redistribution point nad a communication endpoint. In computer science, nodes are devices or data points on a huge network and devices such a PC, phone, or printer are considered nodes.

                Why we use Node js

Node is a javascript Runtime engine which uses google chrome v8 egine.By using node js we can write javascript code outside of the browser .We can also use it if the backend server node is faster than other backed services. Node. js is easily employed as a server-side proxy and I handle a large amount of simultaneous connections in a non-blocking manner. Noise is especially useful for proxying different services with different response times and collecting data from multiple source points.

React js

naimur202163 — Wed, 22 Dec 2021 14:20:07 +0000

 In React js proptypes are a mechanism to ensure components use the correct data type to pass the right data that components use the right type of props that receiving components receive the right type of props.
            State-props

props are variables passed to its parent component .In React State on the other hand is still variables and its directly initialized and managed by the component. The state can be initialized by props in React js.
JSX
Jsx is a react element which looks like html but it is not html.Behind the seen it world link javascript

                                     Component Lifecycle

Component life cycle methods mean which we can monitor and manipulate during its three main phases. The three phases are mounting, updating , unmounting.

            Hooks

Hooks are functional and lifecycle features from function components. Hooks don't work inside classes; it let you use react without classes.we can also create our own Hooks to reuse stateful behavior between different components.
custom hooks

In React js custom Hooks are a part to reuse stateful logic and every time you use a custom Hook, all state and effects inside of it are fully isolated. Each call to a Hook gets isolated state
context API

In React js context api is a way for a React app to effectively produce global variables which can be passed around. This is the alternative to prop drilling nad moving props from grandparent to child to parent or so on. Context is also touted as an easie rand lighter approach to state management using Redux.

                React js

React js is a frontend framework that is most popular nowadays.it is a very powerful framework .We can make single page web application using react js .Its give use so many powerful tools.It is developed by facebook React makes it painless to create awesome ui design . Design is a simple view for each state in your application , React will efficiently update and render just the right components your data changes.react. js is an open-source JavaScript library which is used for building user interfaces specifically for single-page web applications

DEV Community: naimur202163

About Node js

React js