ReactJS UI Ant Design InputNumber Component

Last Updated : 21 May, 2021

Ant Design Library has this component pre-built, and it is very easy to integrate as well. InputNumber Component allows the user to enter a number within a certain range with the help of a keyboard or mouse. We can use the following approach in ReactJS to use the Ant Design InputNumber Component.

InputNumber Methods:

blur(): This method is used to remove the focus from the element.
focus(): This method is used to get the focus on the element.

InputNumber Props:

autoFocus: It is used to get the focus when the component is mounted.
bordered: It is used to specify whether it has border style or not.
decimalSeparator: It is used to indicate the decimal separator.
defaultValue: It is used to specify the initial value.
disabled: It is used to disable the input.
formatter: It is used to specify the format of the value presented.
keyboard: It is used to enable keyboard behavior.
max: It is used to denote the maximum value.
min: It is used to denote the minimum value.
parser: It is used to specify the extracted value from formatter.
precision: It is used to denote the precision of input value.
readOnly: It is used to make the input read-only.
size: It is used to indicate the height of the input box.
step: It is used to denote the number to which the current value is decreased or increased.
stringMode: It is used to set value as string to support decimals of high precision.
value: It is used to denote the current value.
onChange: It is the callback function which is triggered when the value is changed.
onPressEnter: It is the callback function which is triggered when the user press the enter key.
onStep: It is the callback function which is triggered when the user clicks up or down buttons.

Creating React Application And Installing Module:

Step 1: Create a React application using the following command:
```
npx create-react-app foldername
```
Step 2: After creating your project folder i.e. foldername, move to it using the following command:
```
cd foldername
```
Step 3: After creating the ReactJS application, Install the required module using the following command:
```
npm install antd
```

Project Structure: It will look like the following.

Project Structure

Example: Now write down the following code in the App.js file. Here, App is our default component where we have written our code.

App.js

import React, { useState } from 'react'
import "antd/dist/antd.css"; 
import { InputNumber } from 'antd'; 
  
export default function App() { 
  
  // Our state to hold current value of input 
  const [currentValue, setCurrentValue] = useState(0) 
  
  return ( 
    <div style={{ display: 'block', width: 700, padding: 30 }}> 
      <h4>ReactJS Ant-Design InputNumber Component</h4> 
      <InputNumber min={0} defaultValue={0} 
        onChange={(value) => { 
          setCurrentValue(value) 
        }} /> <br /> 
      Current Entered Value : {currentValue} 
    </div> 
  ); 
}