Opal
- Animation
  - Tween
- Border
- CLI
  - App
  - Argument
  - Command
  - Completion
  - Context
  - Help
  - Option
  - OptionValue
  - ParseError
  - Parser
- Color
  - Type
- FormModule
- FormValue
- Input
  - Autocomplete
    - Mode
  - Fuzzy
  - FuzzyMatch
  - KeyMap
    - CharAction
    - KeyAction
  - MouseMap
    - MouseActionCallback
    - ZoneHandler
  - TextInput
- Layout
- Prompt
  - Ask
  - Confirm
  - MultiSelect
  - ProgressBar
  - Select
  - Spinner
- Style
- TEA
  - Cmd
  - CustomMsg
  - KeyMsg
  - Model
  - MouseMsg
  - Msg
  - Program
  - QuitMsg
  - TickMsg
  - WindowSizeMsg
- Terminal
  - ANSIParser
  - AnsiParser
  - ColorProfile
  - Driver
  - Info
  - Key
  - KeyEvent
  - MockDriver
  - MouseAction
  - MouseButton
  - MouseEvent
  - OSC
  - PosixDriver
  - RawMode
  - Screen
  - WindowsDriver
- Theme
- UI
  - Badge
  - BarChart
  - BarChartBuilder
  - BarItem
  - Box
  - Buffer
  - Builder
  - Cell
  - CodeView
  - CommandAction
  - CommandPalette
  - DiffRenderer
  - Element
  - FilterList
  - Gauge
  - HexViewer
  - HStack
  - Markdown
    - Renderer
  - MarkdownElement
  - Modal
  - Rule
  - Sparkline
  - SplitBuilder
  - SplitDirection
  - SplitView
  - StackBuilder
  - TabItem
  - Table
  - TableBuilder
  - Tabs
  - Text
  - Toast
  - ToastManager
  - Tree
  - TreeBuilder
  - TreeNode
  - Viewport
  - VStack
- VisualWidth

alias Opal::FormModule::ValidatorFn

Alias Definition

String -> String?

Defined in:

opal/form/validator.cr