how to print elements upto a particular index in reactjs code example
Example 1: how to get property names from object using map method react
const arrayvals = [
{ Number: 1, newNumber: "1", name: "FB" },
{ Number: 3, newNumber: "2", name: "FB" },
{ Number: 7, newNumber: "5", name: "GK" },
{ Number: 8, newNumber: "4", name: "FW" }
]
function App() {
return (
<div className="App">
<h1>Mapping object keys in react and returning child properties
</h1>
{Object.entries(arrayvals).map((arr)=>{
return <div>Number is : {arr[1].Number} || NewNumber is : {arr[1].newNumber} || and Value is : {arr[1].name}</div>
})}
</div>
);
}
Example 2: change items loop react
import React from 'react';
import './HomePage.scss'
import { Col,Row, Button, Container } from "reactstrap";
let image1 = require("../../Assets/image1.jpg");
let image2 = require("../../Assets/image2.jpg");
let image3 = require("../../Assets/image3.png");
let image4 = require("../../Assets/image4.jpg");
export default class HomePage extends React.Component {
constructor(props) {
super(props);
this.state = {
imagesItems: [image1,image2,image3,image4],
imgChange:image1,
imageIndex:0
componentDidMount=() => {
let totallSize= this.state.imagesItems.length-1;
setInterval(() => {
if(this.state.imageIndex === totallSize){
this.setState({imageIndex: 0})
}else{
this.setState({imageIndex: this.state.imageIndex + 1})
}
}, 3000);
}
render() {
return (
<Container >
<div className={"imageDiv"} >
<img src={this.state.imagesItems[this.state.imageIndex]} className="imgClass" />
</div>
</Container>
);
}
}