Conditionalize-component

a powerful react HOC (Higher Order Component) for rendering components conditionally quickly

Installation:

$ npm i conditionalize-component

Example:

You can use conditionalize-component with any react function component.

import { Box } from 'MyBoxComponent'
import { withConditionals } from 'conditionalize-component'

const BoxC = withConditionals(Box) // now BoxC is wrapped with the conditional props such as renderIf

function UsersPage() {
  return (
    <div>
      <h1>Other stuff</h1>
      <BoxC renderIf={true}>You'll see me</BoxC>
      <BoxC renderIf={false}>You'll not see me</BoxC>
    </div>
  )
}

Example usage on HTML elements:

For native html elements, or Class components, simply wrap them in a function and pass them the necessary props

import { withConditionals } from 'conditionalize-component'

export const Button = withConditionals((props: React.HTMLAttributes<HTMLButtonElement>) => <button {...props} />) // now button is wrapped with the conditional props such as renderIf

function UsersPage() {
  return (
    <div>
      <h1>Other stuff</h1>
      <Button renderIf={true}>You'll see me</Button>
      <Button renderIf={false}>You'll not see me</Button>
    </div>
  )
}

Using the built-in DivIf component

You can also use the premade DivIf component which is basically a div but has the conditional props such as renderIf:

import { DivIf } from 'conditionalize-component'

function App(){
 return (
    <div>
      <DivIf renderIf={1 + 1 === 2}> You'll see me if 1 + 1 = 2 </DivIf>
      <div> You'll see me when 5 + 5 = 12 </div>
    </div>
  )
}

Using the built-in RenderIf component

If you don't want to use DivIf component because it adds an HTML element to your DOM, you can use the RenderIf component which is basically a react fragment but has the conditional props such as renderIf:

import { RenderIf } from 'conditionalize-component'

function App(){
 return (
    <div>
      <RenderIf renderIf={1 + 1 === 2}> You'll see me if 1 + 1 = 2 </RenderIf>
      <div> You'll see me when 5 + 5 = 12 </div>
    </div>
 )
}

API

After applying the HOC on any of your components, you'll get the following props added to the interface of your component props:

renderIf?: boolean (default `true`)
override?: ReactNode
fallback?: ReactNode
execludeChildren?: boolean (default: `false`)

Explaination:

• renderIf: The simplest one, only render the component if the value of this prop is true.
• override: In case renderIf was false, and case execludeChildren was also set to false, render the react node provided in this prop.
• fallback: In case renderIf was false, render the react node provided to this prop instead as a fallback.
• execludeChildren: In case renderIf was false, only the children of the component will be rendered, excluding their parent.

Created by Islam Yamor.