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An awesome replacement for JavaScript's alert.

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See the demo with examples of common use cases and a live editor.

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$ npm i react-bootstrap-sweetalert

or

$ yarn add react-bootstrap-sweetalert

const SweetAlert = require('react-bootstrap-sweetalert');

or

import SweetAlert from 'react-bootstrap-sweetalert';

It is recommended that you keep an alert in your state, and remove it when the onConfirm or onCancel callbacks are invoked.

You can have stackable alerts by keeping an array of alerts in your data store, and always providing the first alert in the array as the visible alert. When an alert is closed, remove it from the store.

See examples/redux for a working example of how to implement stackable alerts with a Redux store.

If you're using input type, the value of the input will be sent to the onConfirm callback as the first argument.

onConfirm={(response) => this.onRecieveInput(response)}

If you want to build an alert that re-renders based on external state changes, or simply want to build a custom form, then you will find the render props pattern to be your best option.

• For re-rendering based on external state changes, use props.dependencies
• See the SweetAlertRenderProps interface in types.ts for some information on the available render props.

<SweetAlert
 title={"Uses render props"}
 onConfirm={this.onConfirm}
 onCancel={this.onCancel}
 dependencies={[this.state.firstName, this.state.lastName]}
>
  {(renderProps: SweetAlertRenderProps) => (
    <form>
      Your name is: {this.state.firstName} {this.state.lastName}
      <hr/>
      <input
        type={'text'}
        ref={renderProps.setAutoFocusInputRef}
        className="form-control"
        value={this.state.firstName}
        onKeyDown={renderProps.onEnterKeyDownConfirm}
        onChange={(e) => this.setState({ firstName: e.target.value })}
        placeholder={'First name'}
      />
      <br />
      <input
        type={'text'}
        className="form-control"
        value={this.state.lastName}
        onKeyDown={renderProps.onEnterKeyDownConfirm}
        onChange={(e) => this.setState({ lastName: e.target.value })}
        placeholder={'Last name'}
      />
      <hr/>
    </form>
  )}
</SweetAlert>

• Added props.dependencies that re-renders the alert whenever the provided Array of dependencies value changes.
• Added new supported value of 'controlled' for props.type. If props.type === 'controlled' then props.onConfirm will return props.dependencies.
• Added support for using a function as your alert content/children, aka render props.

For more see CHANGE_LOG.md

• title (required)
• type
• onConfirm (required)
• onCancel
• customIcon
• allowEscape
• closeOnClickOutside
• hideOverlay
• timeout
• show
• dependencies

• btnSize
• confirmBtnText
• confirmBtnBsStyle
• confirmBtnCssClass
• confirmBtnStyle
• cancelBtnText
• cancelBtnBsStyle
• cancelBtnCssClass
• cancelBtnStyle
• showCloseButton
• reverseButtons
• customButtons
• focusConfirmBtn
• focusCancelBtn
• closeBtnStyle
• showConfirm
• showCancel
• disabled

• placeholder
• required
• validationMsg
• validationRegex
• defaultValue
• inputType

• beforeMount
• afterMount
• afterUpdate
• beforeUnmount

• style
• customClass

• openAnim
• closeAnim

The text to display for the title. JSX/ReactNode allowed.

• Type: ReactNode|string
• Default: undefined

Invoked when user clicks confirm button. Also invoked if user hits ENTER key.

• Type: (response?: any) => any
• Default: undefined

Invoked when user clicks cancel button. Also invoked if allowEscape is true and user hits ESCAPE key.

• Type: () => any
• Default: undefined

The type of alert to display.

• Type: 'default'|'info'|'success'|'warning'|'danger'|'error'|'input'|'custom'|'controlled'
• Default: 'default'

NOTE

• If props.type === 'controlled' then props.onConfirm will receive props.dependencies as its first argument.
• If props.type === 'input' then props.onConfirm will receive props.dependencies as its first argument.

The type of alert to display.

• Type: 'lg'|'sm'|'xs'
• Default: 'lg'
• Allowed values: 'lg', 'sm', 'xs'

Content of confirm button, or JSX/ReactNode.

• Type: ReactNode|string
• Default: 'OK'

Bootstrap style of confirm button.

• Type: 'default'|'primary'|'link'|'info'|'success'|'warning'|'danger'|'secondary'|'outline-{variant}'
• Default: 'primary'

CSS class added to confirm button.

• Type: string
• Default: ''

Inline style added to confirm button.

• Type: CSSProperties
• Default: {}

Content of cancel button, or JSX/ReactNode.

• Type: ReactNode|string
• Default: 'Cancel'

Text of cancel button, or JSX/ReactNode.

• Type: string
• Default: 'link'
• Recommended values: 'default'|'primary'|'link'|'info'|'success'|'warning'|'danger'|'secondary'|'outline-{variant}'

CSS class added to cancel button.

• Type: string
• Default: ''

Inline style added to cancel button.

• Type: CSSProperties
• Default: {}

If set to true, then an X close button will be shown in the top right of the alert.

NOTE: You must also implement props.onCancel in order for this props to work. This is because visibility of the component is controlled externally through either props.show or by removing the <SweetAlert /> in your render method.

• Type: boolean
• Default: false

Reverses the order of the Confirm and Cancel buttons. Default positioning is [Cancel] [Confirm]

• Type: boolean
• Default: false

Custom buttons to use in place of the default Confirm and Cancel buttons. Can render any JSX/ReactNodes here.

• Type: ReactNode
• Default: undefined

Either a string url for an image to use as the icon, or JSX/ReactNode.

• Type: ReactNode|string
• Default: undefined

If props.type is 'input', this is the placeholder for the input field.

• Type: string
• Default: undefined

If false, the alert will not be rendered. Warning: Using this option should be a last resort, and is somewhat of an anti-pattern for this library. The recommended way to control visibility is to only render a <SweetAlert/> element when you want one to be displayed, and remove it when the onConfirm or onCancel methods are called.

• Type: boolean
• Default: true

If you have external state that should trigger your alert to re-render it's content, you can provide an Array of dependencies. Whenever the dependencies are changed, using === comparision, the content of the alert will be re-rendered.

• Type: any[]
• Default: true

Example

const [firstName, setFirstName] = useState('');
const [lastName, setLastName] = useState('');

<SweetAlert dependencies={[firstName, lastName]}>
  <div>
    <h4>Hello {{firstName}} {{lastName}}</h4>
    <input value={firstName} onChange={(e) => setFirstName(e.target.value)} />
    <input value={lastName} onChange={(e) => setLastName(e.target.value)} />
  </div>
</SweetAlert>

If true the Confirm button will receive focus automatically. NOTE: Does not apply when props.type is 'input'

• Type: boolean
• Default: true

If true the Cancel button will receive focus automatically. NOTE: Does not apply when props.type is 'input'

• Type: boolean
• Default: false

If props.type is 'input', this prop controls whether the input field is required to have a value.

• Type: boolean
• Default: true

If props.type is 'input' and props.required is true, this is the message to display when the user clicks confirm without entering a value.

• Type: string
• Default: 'Please enter a response!'

If props.type is 'input' and props.required is true, this Regex is used to validate input value.

• Type: RegExp
• Default: /^.+$/

If props.type is 'input', this is the default value for the input field.

• Type: number|string
• Default: undefined

If props.type is 'input', this is the default value for the input field.

• Type: string
• Default: 'text'
• Recommended values: 'text'|'password'|'number'|'textarea'

Style overrides applied to the sweetalert wrapper.

• Type: CSSProperties
• Default: {}

Style overrides applied to the X close button.

• Type: CSSProperties
• Default: {}

Custom CSS class applied to the sweetalert wrapper.

• Type: string
• Default: ''

If true, the Confirm button will show.

• Type: boolean
• Default: true

If true, the Cancel button will show.

• Type: boolean
• Default: false

If true, the onCancel function will be invoked when the user hits the ESCAPE key.

• Type: boolean
• Default: true

If true, the onCancel function will be invoked when clicking outside the modal.

• Type: boolean
• Default: true

If true, then the modal overlay will not be rendered.

• Type: boolean
• Default: false

If true, then the Confirm button will be disabled. (NOTE: This does not effect the props.allowEscape behavior.) If you set disabled to true but do not provide an onCancel function, then the disabled property will not be honored.

• Type: boolean
• Default: false

Hook which is invoked at the end of the component constructor function.

• Type: () => any
• Default: () => {}

Hook which is invoked at the end of the componentDidMount method.

• Type: () => any
• Default: () => {}

Hook which is invoked at the end of the componentDidUpdate method.

• Type: () => any
• Default: () => {}

Hook which is invoked at the end of the componentWillUnmount method.

• Type: () => any
• Default: () => {}

If defined, and greater than 0, props.onConfirm will be invoked to close the alert automatically after the specified number of milliseconds.

• Type: number
• Default: 0

Provide custom show animation or false to have no animation. To specify a custom animation, provide the name of your css animation and duration of the animation in milliseconds.

• Type: boolean|SweetAlertAnimationProps
• Default: { name: 'showSweetAlert', duration: 300 }

Provide custom hide animation or false to have no animation. To specify a custom animation, provide the name of your css animation and duration of the animation in milliseconds. For a simple hide animation you can use { name: 'hideSweetAlert', duration: 100 }

• Type: boolean|SweetAlertAnimationProps
• Default: false

• SweetAlert
• SweetAlert for Android
• SweetAlert for Bootstrap
• SweetAlert for AngularJS
• SweetAlert for RubyOnRails

$ yarn demo && open https://localhost:3000