Here's a step-by-step tutorial for writing a simple to-do list application using React:<ol><li>Set up a new React project: You can use the <code>create-react-app</code> tool to quickly set up a new React project. Open your terminal and type the following command:<code>npx create-react-app todo-app</code>This will create a new directory called <code>todo-app</code> with all the necessary files and dependencies for a React project.</li><li>Create a new component: In the <code>src</code> directory of your project, create a new file called <code>TodoList.js</code>. This file will contain the code for your to-do list component. In this file, define a new functional component called <code>TodoList</code>.</li><li>Define the state: In the <code>TodoList</code> component, define the initial state of your to-do list. You can use the <code>useState</code> hook to define a state variable for the list items. Here's an example:<pre><code>import React, { useState } from 'react';
function TodoList() {
 const [items, setItems] = useState([]);
}</code></pre></li><li>Render the list: In the <code>TodoList</code> component's <code>return</code> statement, render the list of to-do items. You can use the <code>map</code> method to render each item as a list item element. Here's an example:<pre><code>function TodoList() {
 const [items, setItems] = useState([]);
 return ( &lt;ul&gt;{items.map((item) =&gt; (
 &lt;li key={item}&gt;{item}&lt;/li&gt; ))} &lt;/ul&gt;
 );
}</code></pre></li><li>Add a form to add new items: To add new items to the list, you can add a form element to the <code>TodoList</code> component's <code>return</code> statement. Here's an example:<pre><code>function TodoList() {
 const [items, setItems] = useState([]);
 const [text, setText] = useState('');
 function handleSubmit(event) {
 event.preventDefault();
 setItems([...items, text]); setText('');
 }
 return (
 &lt;&gt;
 &lt;ul&gt; {items.map((item) =&gt; (
 &lt;likey={item}&gt;{item}&lt;/li&gt; ))}
 &lt;/ul&gt;
 &lt;form onSubmit={handleSubmit}&gt; &lt;input type="text"value={text} onChange={(event) =&gt; setText(event.target.value)} /&gt;
 &lt;buttontype="submit"&gt;Add&lt;/button&gt;
 &lt;/form&gt; 
 &lt;/&gt;
 );
}</code></pre></li><li>Finalize the component: You can add more features to your to-do list component, such as the ability to mark items as completed or delete items from the list. Once you're happy with your component, you can use it in your main <code>App.js</code> file by importing and rendering it.</li></ol>That's it! You've just created a simple to-do list application using React. This is just a starting point, and you can customize your application as per your requirements.

This project is an example of a simple to do list app build with React.js and Tailwind CSS.

Build a to-do list app with React and Tailwind

Bjorn Builds