Being_Pankaj: January 2022

Monday, 31 January 2022

Routing Example

Create Nav.js component and write following code in it

import React, { Component } from 'react';

import {Link} from 'react-router-dom'

class Nav extends Component {

render() {

return <nav className='navbar navbar-dark bg-primary'>

Home

</Link>

Axios

</Link>

</li>

ChatApp

</Link>

</li>

UserProfile

</Link>

</li>

FilterApp

</Link>

</li>

</ul>

</div>

</nav>;

}

export default Nav;

Update App.js with following code.

import './App.css';

import State from './Components/Header/Header.js';

import Home from './Components/ChatApp/Home';

import ProfileState from './Components/State/ProfileState';

import Gender from './Components/Gender/Gender';

import AsyncAwait from './Components/Axios/AsyncAwait';

import Nav from './Components/Nav/Nav';

import { BrowserRouter, Route, Routes } from 'react-router-dom';

import PageNotFound from './Components/PageNotFound/PageNotFound';

function App() {

return (

<Nav/>

</Routes>

</BrowserRouter>

</div>

);

}

export default App;

After this do npm start , our application will look like this

PostedBy: pankaj_bhakre

React Router is a standard library for routing in React. It enables the navigation among views of various components in a React Application, allows changing the browser URL, and keeps the UI in sync with the URL.

Let us now install React Router in our Application.

Installing React Router: React Router can be installed via npm in your React application. Follow below command to install Router in your React application: npm install --save react-router-dom

Adding React Router Components: The main Components of React Router are:

BrowserRouter: BrowserRouter is a router implementation that uses the HTML5 history API(pushState, replaceState and the popstate event) to keep your UI in sync with the URL. It is the parent component that is used to store all of the other components.

Routes: It’s a new component introduced in the v6 and a upgrade of the component. The main advantages of Routes over Switch are: Routes are chosen based on the best match instead of being traversed in order.

Route: Route is the conditionally shown component that renders some UI when its path matches the current URL.

Link: Link component is used to create links to different routes and implement navigation around the application. It works like HTML anchor tag.

To add React Router components in your application, open your project directory in the editor you use and go to app.js file. Now, add the below given code in app.js.

import {

BrowserRouter as Router,

Routes,

Route,

Link

} from 'react-router-dom';

Note: BrowserRouter is aliased as Router.

PostedBy: pankaj_bhakre

Filter the Array based on gender

A) Using Different Methods in Radio Button

import React, { Component } from "react";

import { userData } from "./../../UserData.js";

class Gender extends Component {

constructor(props) {

super(props);

this.state = {

info: userData.results,

};

}

allUsers = () => {

this.setState({

info: userData.results

})

}

maleUsers = (event) => {

if(event.target.value === 'Male'){

this.filteredarray = userData.results.filter(x=>x.gender === 'male')

this.setState({

info:this.filteredarray

})

}

console.log(userData.results.filter(x=>x.gender === 'male'));

}

femaleUsers = (event) => {

if(event.target.value === 'Female'){

this.filteredarray = userData.results.filter(x=>x.gender === 'female')

this.setState({

info:this.filteredarray

})

}

console.log(userData.results.filter(x=>x.gender === 'female'));

}

render() {

return (

<h2>Filter Users list based on Gender </h2>

</div>

<input type="radio" value="Other" name="gender" onChange={this.allUsers} /> All

</div>

<input type="radio" value="Male" name="gender" onChange={this.maleUsers}/> Male

</div>

<input type="radio" value="Female" name="gender" onChange={this.femaleUsers}/> Female

</div>

<tr>

<th>Image</th>

<th>Gender</th>

<th>Email</th>

</tr>

</thead>

<tbody>

{this.state.info.map(function (element) {

return (

<tr>

<td>

{

<img

src={element.picture.medium}

className="img-fluid"

alt="userPicture"

></img>

}

</td>

<td>

{element.name.first} {element.name.last}

</td>

<td>{element.gender}</td>

<td>{element.email}</td>

<td>{element.location.city}</td>

</tr>

);

})}

</tbody>

</table>

</div>

);

}

export default Gender;

B) Using Switch statement & single Method in Radio Button

filteredUsers = (event) => {

switch(event.target.value){

case "Male":

this.filteredarray = userData.results.filter(x=>x.gender === 'male');

this.setState({

info:this.filteredarray

});

break;

case 'Female':

this.filteredarray = userData.results.filter(x=>x.gender === 'female');

this.setState({

info:this.filteredarray

});

break;

default:

this.setState({

info:userData.results

});

}

A) Using if-else statement & single Method in Radio Button

filteredUsers = (event) => {

if(event.target.value === 'Male'){

this.filteredarray = userData.results.filter(x=>x.gender === 'male');

this.setState({

info:this.filteredarray

});

}else if (event.target.value === 'Female'){

this.filteredarray = userData.results.filter(x=>x.gender === 'female');

this.setState({

info:this.filteredarray

});

} else{

this.setState({

info:userData.results

});

}

PostedBy: pankaj_bhakre

Sunday, 30 January 2022

Fetching data from fake api using Axios library using map function & Ternary conditions.(using async-await)

import React, { Component } from 'react';

import axios from 'axios';

class AsyncAwait extends Component {

constructor(props) {

super(props)

this.state = {

userInfo: []

}

// this.getUserData = this.getUserData.bind(this);

}

getUserData = async () => {

const result = await axios.get("https://jsonplaceholder.typicode.com/users")

console.log(result.data);

this.setState({

userInfo:result.data

});

}

// async getUserData() {

// const result = await axios.get("https://jsonplaceholder.typicode.com/users")

// console.log(result.data);

// this.setState({

// userInfo:result.data

// });

// }

render() {

return (

Get Data

</button>

</div>

{ this.state.userInfo.length > 0 ? (

<thead>

<tr>

<th>EMAIL</th>

<th>PHONE</th>

<th>COMPANY_NAME</th>

</tr>

</thead>

<tbody>

{this.state.userInfo.map(function (element, index) {

return (

<tr>

<td>{element.id}</td>

<td>{element.name}</td>

<td>{element.email}</td>

<td>{element.address.city}</td>

<td>{element.phone}</td>

<td>{element.company.name}</td>

</tr>

);

})}

</tbody>

</table>

</div>

) : (

<h2> Data is not Available</h2>

</div>

)

}

</div>

);

}

export default AsyncAwait;

Fetching data from fake api using Axios library using map function & Ternary conditions.(using then)

import React, { Component } from "react";

import Axios from "axios";

class AxiosUser extends Component {

constructor(props) {

super(props);

this.state = {

userInfo: [],

};

}

getUserData = () => {

Axios.get("https://jsonplaceholder.typicode.com/users").then(

(result) => {

console.log(result.data);

this.setState({

userInfo:result.data

})

(error) => {

console.log(error);

}

);

};

render() {

return (

Get Data

</button>

</div>

{ this.state.userInfo.length > 0 ? (

<thead>

<tr>

<th>EMAIL</th>

<th>PHONE</th>

<th>COMPANY_NAME</th>

</tr>

</thead>

<tbody>

{this.state.userInfo.map(function (element, index) {

return (

<tr>

<td>{element.id}</td>

<td>{element.name}</td>

<td>{element.email}</td>

<td>{element.address.city}</td>

<td>{element.phone}</td>

<td>{element.company.name}</td>

</tr>

);

})}

</tbody>

</table>

</div>

) : (

<h2> Data is not Available</h2>

</div>

)

}

</div>

);

}

export default AxiosUser;

PostedBy: pankaj_bhakre

Class component with fetching data from fake api using Axios library

import React, { Component } from 'react';

import Axios from 'axios';

class AxiosUser extends Component {

getUserData=()=>{

Axios.get("https://jsonplaceholder.typicode.com/users").then(result => {

console.log(result.data);

(error) => {

console.log(error);

}

)

}

render() {

return <div className='container'>

</div>

</div>;

}

export default AxiosUser;

PostedBy: pankaj_bhakre

Chapter4-Axios Library

Introduction to Axios: Axios, which is a popular library is mainly used to send asynchronous HTTP requests to REST endpoints. This library is very useful to perform CRUD operations.

This popular library is used to communicate with the backend.
Axios supports the Promise API, native to JS ES6.
Using Axios we make API requests in our application. Once the request is made we get the data in Return, and then we use this data in our project.

Install Axios library using the command given below…

npm install axios

After Axios installation, you can import this library into your file and use it to make an HTTP request.

Axios.get("https://jsonplaceholder.typicode.com/users").then(result => {

console.log(result.data);

Axios provides different methods for CRUD operation like

get() ---- to fetch data

post()---- to submit data

put() ---- to update data

delete() --- to delete data

PostedBy: pankaj_bhakre

Saturday, 29 January 2022

Class component fetching data from another file

Create UserData.js & Emp.js file write following code init.

UserData.js

export var userData ={

results: [{

"gender": "female",

"name": {

"title": "Mrs",

"first": "Lola",

"last": "Obrien"

"location": {

"street": {

"number": 5836,

"name": "Rectory Lane"

"city": "Inverness",

"state": "Cornwall",

"country": "United Kingdom",

"postcode": "A8 8XT",

"coordinates": {

"latitude": "6.1567",

"longitude": "102.7246"

"timezone": {

"offset": "+9:00",

"description": "Tokyo, Seoul, Osaka, Sapporo, Yakutsk"

}

"email": "lola.obrien@example.com",

"login": {

"uuid": "aa6e9b62-c732-4947-963c-94eaf7b46cef",

"username": "silverlion377",

"password": "clemson",

"salt": "CmkMqCgy",

"md5": "306ab007e07b3cf978b587aa0d32d4e7",

"sha1": "528a2a36f1af754ecd4527fe44d59b36458ab7e3",

"sha256": "bac99827e558efa75264fda16d7f579f1129b074ee95c6d057dc7430ab65b6b4"

"dob": {

"date": "1994-03-22T14:00:21.714Z",

"age": 28

"registered": {

"date": "2013-07-30T16:26:22.869Z",

"age": 9

"phone": "016977 90968",

"cell": "0794-864-054",

"id": {

"name": "NINO",

"value": "JR 46 06 00 D"

"picture": {

"large": "https://randomuser.me/api/portraits/women/92.jpg",

"medium": "https://randomuser.me/api/portraits/med/women/92.jpg",

"thumbnail": "https://randomuser.me/api/portraits/thumb/women/92.jpg"

"nat": "GB"

}, {

"gender": "female",

"name": {

"title": "Mrs",

"first": "Frida",

"last": "Møller"

"location": {

"street": {

"number": 6875,

"name": "Mejsevej"

"city": "Branderup J",

"state": "Syddanmark",

"country": "Denmark",

"postcode": 22903,

"coordinates": {

"latitude": "2.7742",

"longitude": "79.5760"

"timezone": {

"offset": "-10:00",

"description": "Hawaii"

}

"email": "frida.moller@example.com",

"login": {

"uuid": "dc1305fb-2dd5-42b6-bbf5-5af5f542ed7f",

"username": "whiteostrich452",

"password": "neville",

"salt": "ubpezdUT",

"md5": "b9450779c685ef5b8d62f3a4e418bab3",

"sha1": "19f44bec7538d444be90bb31c4c2b0ca90f56e22",

"sha256": "4ebd1df4296772e33b1c290bde677b6d48c144af420aa3ff672d6c62a9910c32"

"dob": {

"date": "1995-02-02T01:55:00.588Z",

"age": 27

"registered": {

"date": "2011-05-18T18:24:38.738Z",

"age": 11

"phone": "30920279",

"cell": "44095149",

"id": {

"name": "CPR",

"value": "020295-0777"

"picture": {

"large": "https://randomuser.me/api/portraits/women/22.jpg",

"medium": "https://randomuser.me/api/portraits/med/women/22.jpg",

"thumbnail": "https://randomuser.me/api/portraits/thumb/women/22.jpg"

"nat": "DK"

}],

"info": {

"seed": "f340257157c1c25c",

"results": 2,

"page": 1,

"version": "1.3"

}

};

EMP.js

export var emp = {

results: [

{

gender: "male",

title: "Mr",

first: "Jeremy",

last: "Lawrence",

location: {

street: {

number: 2369,

city: "San Mateo",

state: "Maine",

country: "United States",

postcode: 90842,

coordinates: {

latitude: "84.9481",

longitude: "-164.6132",

timezone: {

offset: "+4:00",

description: "Abu Dhabi, Muscat, Baku, Tbilisi",

email: "jeremy.lawrence@example.com",

uuid: "78932c5e-c6ea-4fea-973e-9da2b2c3fe18",

username: "bluetiger627",

password: "hounddog",

salt: "Vz6O83Of",

md5: "ed9d2d507ed72f4880c8ce79b5f8a92a",

sha1: "006502125b81fa1cd82fbcbf16c78efa8de64b69",

sha256:

"c2a4f208c9156a42d7664e8d6a9f2f077179381b509eee79275750a4c396d6d4",

dob: {

date: "1989-01-19T11:44:19.498Z",

age: 33,

registered: {

date: "2013-03-11T07:32:42.850Z",

age: 9,

phone: "(717)-299-1541",

cell: "(671)-779-8846",

id: {

value: "022-29-4928",

picture: {

large: "https://randomuser.me/api/portraits/men/18.jpg",

medium: "https://randomuser.me/api/portraits/med/men/18.jpg",

thumbnail: "https://randomuser.me/api/portraits/thumb/men/18.jpg",

nat: "US",

{

gender: "female",

title: "Miss",

first: "Iolita",

last: "Nunes",

location: {

street: {

number: 7178,

city: "Teófilo Otoni",

state: "Paraná",

country: "Brazil",

postcode: 50044,

coordinates: {

latitude: "-2.5161",

longitude: "-125.3800",

timezone: {

offset: "-3:30",

description: "Newfoundland",

email: "iolita.nunes@example.com",

uuid: "9b2bbedc-7a03-444e-bf4e-1f6b44b9e87b",

username: "goldenswan706",

password: "nimitz",

salt: "STO3yKnu",

md5: "4f8ca7d5bbaf6e4ad72a1e8f2cd3c142",

sha1: "56ec11994f363898c7c4fada86d55494a398e74a",

sha256:

"1c639643d63ef4e954f9effdff3db9d89c7ed53ed6b22a5b47412d46aa21fb35",

dob: {

date: "1952-12-20T15:24:59.373Z",

age: 70,

registered: {

date: "2014-11-23T04:27:30.259Z",

age: 8,

phone: "(95) 4892-4517",

cell: "(85) 3502-5328",

id: {

value: null,

picture: {

large: "https://randomuser.me/api/portraits/women/67.jpg",

medium: "https://randomuser.me/api/portraits/med/women/67.jpg",

thumbnail: "https://randomuser.me/api/portraits/thumb/women/67.jpg",

nat: "BR",

};

Now Create UserProfile.js write following code

import React, { Component } from "react";

import { userData } from "./../../UserData";

import { emp } from "./../../emp";

class UserProfile extends Component {

constructor(props) {

super(props);

this.state = {

info: userData,

};

}

updateUser = () => {

this.setState({

info: userData,

});

};

updateEmployee = () => {

this.setState({

info: emp,

});

};

render() {

return (

Lorem ipsum dolor sit amet consectetur, adipisicing elit. Odio

excepturi sapiente praesentium, soluta officia consequatur numquam

sed at itaque, repudiandae sint esse aliquid delectus repellat

earum, placeat et! Sit adipisci magnam veritatis obcaecati quis

necessitatibus, eveniet earum aut, quibusdam sequi amet minima harum

nesciunt nihil nisi impedit nobis! Nostrum ad exercitationem rerum

soluta quam tenetur dolor molestias, mollitia explicabo corrupti.

</p>

</div>

User Information

</button>

</div>

Employee Information

</button>

</div>

<tr>

<th>IMAGE</th>

<th>GENDER</th>

<th>EMAIL</th>

</tr>

</thead>

<tbody>

{this.state.info.results.map(function (element) {

return (

<tr>

<td>

<img

src={element.picture.medium}

className="img-fluid"

</td>

<td>

{element.name.first} {element.name.last}

</td>

<td>{element.gender}</td>

<td>{element.email}</td>

<td>{element.location.city}</td>

</tr>

);

})}

</tbody>

</table>

</div>

);

}

export default UserProfile;

PostedBy: pankaj_bhakre

Being_Pankaj

Menu

Monday, 31 January 2022

Routing Example

Chapter5-Routing

Filter the Array based on gender

Sunday, 30 January 2022

Fetching data from fake api using Axios library using map function & Ternary conditions.(using async-await)

Fetching data from fake api using Axios library using map function & Ternary conditions.(using then)

Class component with fetching data from fake api using Axios library

Chapter4-Axios Library

Saturday, 29 January 2022

Class component fetching data from another file

Wikipedia

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