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react-debounce-input

React component that renders an Input, Textarea or other element with debounced onChange. Can be used as drop-in replacement for <input type="text" /> or <textarea />

Installation

NPM

npm install --save react react-debounce-input

Don't forget to manually install peer dependencies (react) if you use npm@3.

1998 Script Tag:

<script src="https://unpkg.com/react@16.0.0/umd/react.production.min.js"></script>
<script src="https://unpkg.com/react-debounce-input/build/react-debounce-input.js"></script>
(Module exposed as `DebounceInput`)

Demo

http://nkbt.github.io/react-debounce-input

Codepen demo

http://codepen.io/nkbt/pen/VvmzLQ

Usage

import React from 'react';
import ReactDOM from 'react-dom';
import {DebounceInput} from 'react-debounce-input';

class App extends React.Component {
  state = {
    value: ''
  };

  render() {
    return (
      <div>
        <DebounceInput
          minLength={2}
          debounceTimeout={300}
          onChange={event => this.setState({value: event.target.value})} />

        <p>Value: {this.state.value}</p>
      </div>
    );
  }
}

const appRoot = document.createElement('div');
document.body.appendChild(appRoot);
ReactDOM.render(<App />, appRoot);

Options

`element` : PropTypes.string or React.PropTypes.func (default: "input")

You can specify element="textarea". For Example:

<DebounceInput element="textarea" />

Will result in

<textarea />

Note: when rendering a <textarea /> you may wish to set forceNotifyByEnter = {false} so the user can make new lines without forcing notification of the current value.

This package has only been tested with <input /> and <textarea /> but should work with any element which has value and onChange props.

You can also use a custom react component as the element. For Example:

<DebounceInput element={CustomReactComponent} />

Will result in

<CustomReactComponent />

`onChange`: PropTypes.func.isRequired

Function called when value is changed (debounced) with original event passed through

`value`: PropTypes.string

Value of the Input box. Can be omitted, so component works as usual non-controlled input.

`minLength`: PropTypes.number (default: 2)

Minimal length of text to start notify, if value becomes shorter then minLength (after removing some characters), there will be a notification with empty value ''.

`debounceTimeout`: PropTypes.number (default: 100)

Notification debounce timeout in ms. If set to -1, disables automatic notification completely. Notification will only happen by pressing Enter then.

`forceNotifyByEnter`: PropTypes.bool (default: true)

Notification of current value will be sent immediately by hitting Enter key. Enabled by-default. Notification value follows the same rule as with debounced notification, so if Length is less, then minLength - empty value '' will be sent back.

NOTE if onKeyDown callback prop was present, it will be still invoked transparently.

`forceNotifyOnBlur`: PropTypes.bool (default: true)

Same as forceNotifyByEnter, but notification will be sent when focus leaves the input field.

`inputRef`: PropTypes.func (default: undefined)

Will pass ref={inputRef} to generated input element. We needed to rename ref to inputRef since ref is a special prop in React and cannot be passed to children.

See ./example/Ref.js for usage example.

Arbitrary props will be transferred to rendered `<input>`

<DebounceInput
  type="number"
  onChange={event => this.setState({value: event.target.value})}
  placeholder="Name"
  className="user-name" />

Will result in

<input
  type="number"
  placeholder="Name"
  className="user-name" />

Typescript

This library has typescript typings, import them the same way as in javascript:

import {DebounceInput} from 'react-debounce-input';

Also there are helper types DebounceTextArea and Debounced to provide strict interfaces for wrapping components different from standard <input />. Check usage examples in example/typescript-example.tsx.

NOTE library author is not using Typescript, so if you are using typings and found an issue, please submit a PR with fix. Thanks @iyegoroff for the initial TS support!

Development and testing

Currently is being developed and tested with the latest stable Node 8 on OSX.

To run example covering all DebounceInput features, use yarn start, which will compile example/Example.js

git clone git@github.com:nkbt/react-debounce-input.git
cd react-debounce-input
yarn install
yarn start

# then
open http://localhost:8080

Tests

# to run ESLint check
yarn lint

# to run tests
yarn test

# to run end-to-end tests
# first, run `selenium/standalone-firefox:3.4.0` docker image
yarn selenium

# then run test
yarn e2e

License

MIT

react-debounce-input

Installation

NPM

1998 Script Tag:

Demo

Codepen demo

Usage

Options

element : PropTypes.string or React.PropTypes.func (default: "input")

onChange: PropTypes.func.isRequired

value: PropTypes.string

minLength: PropTypes.number (default: 2)

debounceTimeout: PropTypes.number (default: 100)

forceNotifyByEnter: PropTypes.bool (default: true)

forceNotifyOnBlur: PropTypes.bool (default: true)

inputRef: PropTypes.func (default: undefined)

Arbitrary props will be transferred to rendered <input>

Typescript

Development and testing

Tests

License

`element` : PropTypes.string or React.PropTypes.func (default: "input")

`onChange`: PropTypes.func.isRequired

`value`: PropTypes.string

`minLength`: PropTypes.number (default: 2)

`debounceTimeout`: PropTypes.number (default: 100)

`forceNotifyByEnter`: PropTypes.bool (default: true)

`forceNotifyOnBlur`: PropTypes.bool (default: true)

`inputRef`: PropTypes.func (default: undefined)

Arbitrary props will be transferred to rendered `<input>`

License

upserve/react-debounce-input

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