ant-design/components/input-number/demo/formatter.md

---
order: 4
title:
  zh-CN: 格式化展示
  en-US: Formatter
---

## zh-CN

通过 `formatter` 格式化数字，以展示具有具体含义的数据，往往需要配合 `parser` 一起使用。

> 这里有一个更复杂的货币格式化输入框：[https://codesandbox.io/s/currency-wrapper-antd-input-3ynzo](https://codesandbox.io/s/currency-wrapper-antd-input-3ynzo)

## en-US

Display value within it's situation with `formatter`, and we usually use `parser` at the same time.

> Here is a Intl.NumberFormat InputNumber implementation: [https://codesandbox.io/s/currency-wrapper-antd-input-3ynzo](https://codesandbox.io/s/currency-wrapper-antd-input-3ynzo)

```jsx
import { InputNumber } from 'antd';

function onChange(value) {
  console.log('changed', value);
}

ReactDOM.render(
  <>
    <InputNumber
      defaultValue={1000}
      formatter={value => `$ ${value}`.replace(/\B(?=(\d{3})+(?!\d))/g, ',')}
      parser={value => value.replace(/\$\s?|(,*)/g, '')}
      onChange={onChange}
    />
    <InputNumber
      defaultValue={100}
      min={0}
      max={100}
      formatter={value => `${value}%`}
      parser={value => value.replace('%', '')}
      onChange={onChange}
    />
  </>,
  mountNode,
);
```