• Installation
• Api
  • Form
    • Form Props
    • Form Render Props
  • Field
    • Field Props
    • Field Render Prop
  • Field Array
    • Field Array Props
    • Field Array Render Prop
  • Field Observer
    • Field Observer Props
  • Form Observer
    • Form Observer Props
• Acknowledgment
• License

Installation

• npm

    npm i -S zenform

• yarn

    yarn add zenform

Api

zenform has 2 core components

• Form
• Field

and a few helper components

• FieldArray
• FieldObserver
• FormObserver

Form

Form is top most component, all other components should be its child.

Form Props

• onSubmit: (value: Object, actions: FormActions ) => void
• initialValues?: Object
• validations?: (values: Object) => void | Object | Promise<*>
• validateOnChange?: boolean
• validateOnBlur?: boolean

To render the form , it takes either a function as render prop or child as a function.
This function will have form render props as arguments.

Form Render Props

• values: Object
• handleSubmit: (event?: SyntheticEvent<HTMLFormElement>) => void
• resetForm: () => void
• errors: Object
• touched: Object
• data: Object
• activeField: string
• isDirty: boolean
• isInvalid: boolean
• initialValues: Object
• setFieldValue: (field: string, value: any) => void
• setMultipleFieldValues: (fieldValues: Array<{field: string, value: any}>) => void
• setFieldError: (field: string, error: any) => void
• setMultipleFieldErrors: (fieldErrors: Array<{field: string, error: any}>) => void
• setFieldTouched: (field: string, isTouched: boolean) => void
• setMultipleFieldTouched: (fieldTouched: Array<{field: string, isTouched: boolean}>) => void
• setFieldData: (field: string, data: any) => void
• setMultipleFieldData: (fieldData: Array<{field: string, data: any}>) => void
• setActiveField: (field: string) => void

---

Field

Field is the actual input component, it should always be a child of Form component.

Field Props

• name: string
• format?: (value: any) => any
• parse?: (value: any) => any
• allowNull?: boolean
• value?: any

To render the field , it takes either a component (string or react component) or a function as render prop or child as a function.
This function will have field render props as arguments.

Field Render Prop

• input: Object

  • name: string
  • value: any
  • onChange: (Event<*>) => void
  • onBlur: (Event<*>) => void
  • onFocus: (Event<*>) => void

• meta: Object

  • error: any
  • data: any
  • isActive: boolean
  • isTouched: boolean

---

Field Array

Array Field is a helper component for using multiple array input.

Field Array Props

• name: string

To render the field array, it takes either a function as render prop or child as a function.
This function will have field array render props as arguments.

Field Array Render Prop

• fields: Object
  • name: string,
  • arrayValues: any[]
  • forEach: (iterator: (name: string, index: number) => void) => void
  • insert: (index: number, value: any) => void
  • map: (iterator: (name: string, index: number) => any) => any[]
  • move: (from: number, to: number) => void
  • pop: () => void
  • push: (value: any) => void
  • remove: (index: number) => void
  • replace: (index: number, value: any) => void
  • swap: (indexA: number, indexB: number) => void
  • unshift: (value: any) => number

---

Field Observer

A FieldObserver component observes a given field and provides functions to access onChange, onBlur and onFocus on it.
This component doesn't render anything on the dom.

Field Observer Props

• name: string
• onChange?: (fieldObserverData: FieldObserverData) => void
• onBlur?: (fieldObserverData: FieldObserverData) => void
• onFocus?: (fieldObserverData: FieldObserverData) => void

where FieldObserverData is an object containing

• name: string
• value: any
• formValues: Object
• data: any
• isActive: any
• isTouched: boolean
• setFieldValue: (field: string, value: any) => void
• setMultipleFieldValues: (fieldValues: Array<{field: string, value: any}>) => void
• setFieldError: (field: string, error: any) => void
• setMultipleFieldErrors: (fieldErrors: Array<{field: string, error: any}>) => void
• setFieldTouched: (field: string, isTouched: boolean) => void
• setMultipleFieldTouched: (fieldTouched: Array<{field: string, isTouched: boolean}>) => void
• setFieldData: (field: string, data: any) => void
• setMultipleFieldData: (fieldData: Array<{field: string, data: any}>) => void
• setActiveField: (field: string) => void

---

Form Observer

A FormObserver component observes values of the whole form and provides functions to access onChange on it.
This component doesn't render anything on the dom.

Form Observer Props

• onChange?: (formObserverData: FormObserverData) => void

where FormObserverData is an object containing

• values: Object
• setFieldValue: (field: string, value: any) => void
• setMultipleFieldValues: (fieldValues: Array<{field: string, value: any}>) => void
• setFieldError: (field: string, error: any) => void
• setMultipleFieldErrors: (fieldErrors: Array<{field: string, error: any}>) => void
• setFieldTouched: (field: string, isTouched: boolean) => void
• setMultipleFieldTouched: (fieldTouched: Array<{field: string, isTouched: boolean}>) => void
• setFieldData: (field: string, data: any) => void
• setMultipleFieldData: (fieldData: Array<{field: string, data: any}>) => void
• setActiveField: (field: string) => void

Acknowledgment

• react-final-form

  • Api design
  • Lots of code pieces

• formik

  • Lots of code pieces

License

MIT