MaskedInput

A React component for <input> masking, built on top of inputmask-core.

Live Demo

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 (development version)
• react-maskedinput.min.js (compressed production version)

Usage

Give MaskedInput a mask and an onChange callback:

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:

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 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 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 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