Array Map React Js

React class component to render an array of objects using the map method created a react component app.jsx we have an array of objects stored in react state object in the render method, iterated array of objects using map method and construct the result object in the render method add this result using the javascript expression syntax Keys should be given to the elements inside the array to give the elements a stable identity import react from 'react' const home = () => { const names = [ john, jane, mike, tony ] // all the jsx will go inside this return return ( { names.map ( (name, key)=> ( {name} )) } ) } export default home The.map () method allows you to run a function on each item in the array, returning a new array as the result.

In react, the map () function is most commonly used for rendering a list of data to the dom. Example in the given example, the map () function takes an array of numbers and double their values. Src/pages/detail.js render () { return ({this.state.people.map ( (person, index) => ( hello, {person.name} from {person.country}!

There are many javascript array methods.

Add markers as a child component of the map. Below, we loop through the numbers array using the javascript map () function. In this quick example you will learn react use array map to dynamically render elements. The component returns null as google.maps.map manages the dom manipulation.