import React from 'react';import ReactDOM from 'react-dom/client';const myArray = ['apple', 'banana', 'orange'];const myList = myArray.map((item) => <p>{item}</p>)const container = document.getElementById('root');const root = ReactDOM.createRoot(container);root.render(myList);
Question
import React from 'react';import ReactDOM from 'react-dom/client';const myArray = ['apple', 'banana', 'orange'];const myList = myArray.map((item) => <p>{item}</p>)const container = document.getElementById('root');const root = ReactDOM.createRoot(container);root.render(myList);
Solution
The code you've written is in JavaScript, specifically using the React library. It's creating an array of fruits and then mapping over that array to create a new array of paragraph elements. Each paragraph element contains one fruit from the array. This new array of paragraph elements is then rendered to the root element on the page.
Here's a step-by-step breakdown:
-
Import the necessary libraries: React for building the user interface and ReactDOM for rendering the React components to the DOM.
-
Create an array
myArraywith three strings: 'apple', 'banana', 'orange'. -
Use the
mapfunction to create a new arraymyList. This function goes through each item inmyArray, and for each item, it returns a new paragraph element with the item inside it. -
Get the root element from the DOM using
document.getElementById('root')and store it in thecontainervariable. -
Create a root from the
containerusingReactDOM.createRoot(container)and store it in therootvariable. -
Render
myListto therootusingroot.render(myList).
This will result in the root element being filled with three paragraph elements, each containing a different fruit from the myArray array.
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