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react-maskedinput

(★ 728)

Masked <input/> React component

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- - index.js
  - style.css
- index.js
- index-test.js
.eslintrc
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.travis.yml
CHANGES.md
CONTRIBUTING.md
LICENSE
nwb.config.js
package.json
README.md

# Installation Guide

1. Get the code

git clone https://github.com/insin/react-maskedinput

Downloads the entire project code from GitHub to your computer.

cd react-maskedinput

Moves into the project folder you just downloaded.

2. Node.js

Easy Recommended

Prerequisites

Git Needed to download the project code from GitHub.
Node.js Node.js must be installed to use npm. The LTS version is recommended.

npm install react-maskedinput --save

Downloads and installs the libraries listed in package.json.

✅ After running the command, open the address shown in the terminal (usually something like http://localhost:3000) in your browser.

Pulled directly from this repo's README.

// repository documentation

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# `MaskedInput`

A [React](http://facebook.github.io/react/) component for `<input>` masking, built on top of [inputmask-core](https://github.com/insin/inputmask-core).

![This project has never been used by its author, other than while making it.](https://img.shields.io/badge/author--usage-never-red.png "This project has never been used by its author, other than while making it")

## [Live Demo](http://insin.github.io/react-maskedinput/)

## Install

### npm

```
npm install react-maskedinput --save
```

### Browser bundle

The browser bundle exposes a global `MaskedInput` variable and expects to find a global `React` variable to work with.

* [react-maskedinput.js](https://unpkg.com/react-maskedinput/umd/react-maskedinput.js) (development version)
* [react-maskedinput.min.js](https://unpkg.com/react-maskedinput/umd/react-maskedinput.min.js) (compressed production version)

## Usage

Give `MaskedInput` a [`mask`](#mask-string) and an `onChange` callback:

```javascript
import React from 'react'
import MaskedInput from 'react-maskedinput'

class CreditCardDetails extends React.Component {
  state = {
    card: '',
    expiry: '',
    ccv: ''
  }

_onChange = (e) => {
    this.setState({[e.target.name]: e.target.value})
  }

render() {
    return <div className="CreditCardDetails">
      <label>
        Card Number:{' '}
        <MaskedInput mask="1111 1111 1111 1111" name="card" size="20" onChange={this._onChange}/>
      </label>
      <label>
        Expiry Date:{' '}
        <MaskedInput mask="11/1111" name="expiry" placeholder="mm/yyyy" onChange={this._onChange}/>
      </label>
      <label>
        CCV:{' '}
        <MaskedInput mask="111" name="ccv" onChange={this._onChange}/>
      </label>
    </div>
  }
}
```

Create some wrapper components if you have a masking configuration which will be reused:

```javascript
function CustomInput(props) {
  return <MaskedInput
    mask="1111-WW-11"
    placeholder="1234-WW-12"
    size="11"
    {...props}
    formatCharacters={{
      'W': {
        validate(char) { return /\w/.test(char ) },
        transform(char) { return char.toUpperCase() }
      }
    }}
  />
}
```

## Props

### `mask` : `string`

The masking pattern to be applied to the `<input>`.

See the [inputmask-core docs](https://github.com/insin/inputmask-core#pattern) for supported formatting characters.

### `onChange` : `(event: SyntheticEvent) => any`

A callback which will be called any time the mask's value changes.

This will be passed a `SyntheticEvent` with the input accessible via `event.target` as usual.

**Note:** this component currently calls `onChange` directly, it does not generate an `onChange` event which will bubble up like a regular `<input>` component, so you *must* pass an `onChange` if you want to get a value back out.

### `formatCharacters`: `Object`

Customised format character definitions for use in the pattern.

See the [inputmask-core docs](https://github.com/insin/inputmask-core#formatcharacters) for details of the structure of this object.

### `placeholderChar`: `string`

Customised placeholder character used to fill in editable parts of the pattern.

See the [inputmask-core docs](https://github.com/insin/inputmask-core#placeholderchar--string) for details.

### `value` : `string`

A default value for the mask.

### `placeholder` : `string`

A default `placeholder` will be generated from the mask's pattern, but you can pass a `placeholder` prop to provide your own.

### `size` : `number | string`

By default, the rendered `<input>`'s `size` will be the length of the pattern, but you can pass a `size` prop to override this.

### Other props

Any other props passed in will be passed as props to the rendered `<input>`, except for the following, which are managed by the component:

* `maxLength` - will always be equal to the pattern's `.length`
* `onKeyDown`, `onKeyPress` & `onPaste` - will each trigger a call to `onChange` when necessary

## MIT Licensed