TypeScript is a programming language that is a strict syntactical superset of JavaScript, and adds optional static typing to the language. It was developed and is maintained by Microsoft.There are several benefits to using TypeScript in a React application:<ol><li>Type safety: TypeScript can help catch type-related errors in your code, preventing runtime errors and making it easier to maintain and scale your application.</li><li>Improved code understanding: TypeScript can provide better documentation and make it easier for other developers to understand the intent of your code.</li><li>Better autocomplete and code navigation: Many code editors have excellent support for TypeScript, making it easier to write code and navigate through a codebase.</li><li>Easier refactoring: With TypeScript, it's easier to refactor code because the type system can help ensure that all of the necessary updates are made.</li><li>Integration with JSX: TypeScript has good integration with JSX, the syntax used for writing React components, making it easier to work with React and TypeScript together.</li></ol>Overall, using TypeScript in a React application can help improve the quality and maintainability of your code, and make it easier for other developers to work with your codebase.We will be using <a href="https://jsonplaceholder.typicode.com/todos" rel="noopener noreferrer" target="_blank">json-place-holder-api</a> and <a href="https://transform.tools/json-to-typescript" rel="noopener noreferrer" target="_blank">transform-tools</a>. To generate the types automatically we will first:<ul><li>Call the API endpoint in the browser or use postman</li></ul> <img class="numa-image" src="https://firebasestorage.googleapis.com/v0/b/yasirkadhim-812b9.appspot.com/o/firehouse%2Fimages%2FuploadedImage-1672314608079.image%2Fpng?alt=media&amp;token=63fc96d3-f253-4a86-871d-763592ccdbf4"><ul><li>Then we copy the response and place it inside transform-tools, we will be using mono-type for this example which bundles and connects all times within one interface.</li></ul> <img class="numa-image" src="https://firebasestorage.googleapis.com/v0/b/yasirkadhim-812b9.appspot.com/o/firehouse%2Fimages%2FuploadedImage-1672314763849.image%2Fpng?alt=media&amp;token=ca6b6ae1-9f51-4ee1-be87-efdcb28a32d7">if you don't want mono-type don't change it from the settings button.<ul><li>After that, we copy our ts code into our react js project.</li><li>Perform an Axios request using useEffect and save the results into a useState with the type we just generated.</li><li>Then we combine all of those to have the following</li></ul><pre class="ql-syntax" spellcheck="false">import axios from "axios";
import { useEffect, useState } from "react";


export const TypeGeneration = () =&gt; {
&nbsp; const [data, setData] = useState&lt;
&nbsp; &nbsp; Array&lt;{
&nbsp; &nbsp; &nbsp; userId: number;
&nbsp; &nbsp; &nbsp; id: number;
&nbsp; &nbsp; &nbsp; title: string;
&nbsp; &nbsp; &nbsp; completed: boolean;
&nbsp; &nbsp; }&gt;
&nbsp; &gt;([]);


&nbsp; useEffect(() =&gt; {
&nbsp; &nbsp; async function fetchData() {
&nbsp; &nbsp; &nbsp; const response = await axios.get(
&nbsp; &nbsp; &nbsp; &nbsp; "https://jsonplaceholder.typicode.com/todos"
&nbsp; &nbsp; &nbsp; );
&nbsp; &nbsp; &nbsp; setData(response.data);
&nbsp; &nbsp; }
&nbsp; &nbsp; fetchData();
&nbsp; }, []);


&nbsp; return (
&nbsp; &nbsp; &lt;div&gt;
&nbsp; &nbsp; &nbsp; {data.map((e) =&gt; (
&nbsp; &nbsp; &nbsp; &nbsp; &lt;div key={e.id}&gt;
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; {e.title}-{e.completed}
&nbsp; &nbsp; &nbsp; &nbsp; &lt;/div&gt;
&nbsp; &nbsp; &nbsp; ))}
&nbsp; &nbsp; &lt;/div&gt;
&nbsp; );
};
</pre>For a quick coding example, you can watch the following short

Easiest Way To Generate Types For Responses in React

React is a popular JavaScript library for building user interfaces, and one of the core concepts in React is the use of callbacks. Callbacks allow you to pass a function as a prop to a child component, which can then be invoked at a later time.There are many use cases for callbacks in React, such as triggering an action when a button is clicked, or updating the parent component when a form is submitted.Here is an example of using a callback in a simple React application:<pre class="ql-syntax" spellcheck="false">import React, { useState } from 'react';

function App() {
&nbsp; const [count, setCount] = useState(0);
&nbsp; const incrementCount = () =&gt; {
&nbsp; &nbsp; setCount(count + 1);
&nbsp; };


&nbsp; return (
&nbsp; &nbsp; &lt;div&gt;
&nbsp; &nbsp; &nbsp; &lt;h1&gt;{count}&lt;/h1&gt;
&nbsp; &nbsp; &nbsp; &lt;button onClick={incrementCount}&gt;Increment&lt;/button&gt;
&nbsp; &nbsp; &lt;/div&gt;
&nbsp; );
}
</pre>In this example, we have a component called App that displays a count and a button. When the button is clicked, the incrementCount function is called, which updates the count state using the setCount function.Now let's say we want to pass the incrementCount function as a prop to a child component called Counter. We can do this by defining the child component as follows:<pre class="ql-syntax" spellcheck="false">import React from 'react';

function Counter(props) {
 return (
 &lt;div&gt;&lt;button onClick={props.onIncrement}&gt;Increment&lt;/button&gt;&lt;/div&gt;
 );
}
</pre>Notice that the Counter component has a prop called onIncrement, which is a function that will be called when the button is clicked. To pass the incrementCount function from the parent component to the child component, we can update the App component like this:<pre class="ql-syntax" spellcheck="false">import React, { useState } from 'react';
import Counter from './Counter';
function App() {
&nbsp; const [count, setCount] = useState(0);
&nbsp; const incrementCount = () =&gt; {
&nbsp; &nbsp; setCount(count + 1);
&nbsp; };

&nbsp; return (
&nbsp; &nbsp; &lt;div&gt;
&nbsp; &nbsp; &nbsp; &lt;h1&gt;{count}&lt;/h1&gt;
&nbsp; &nbsp; &nbsp; &lt;Counter onIncrement={incrementCount} /&gt;
&nbsp; &nbsp; &lt;/div&gt;
&nbsp; );
}
</pre>Now when the button in the Counter component is clicked, it will trigger the incrementCount function in the parent component, which will update the count state and re-render the component with the new count.In conclusion, callbacks are a powerful tool for passing data and triggering actions between components in a React application. By passing a function as a prop to a child component, you can invoke the function at a later time and update the parent component as needed.

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