react-ms

Switch and Match components, with generic matching tools, to assist you in all your conditional rendering needs.

Install

npm install react-ms --save
# Or, with yarn
yarn add react-ms

Usage

The main component exported by react-ms is the <Switch> component. Switch takes in a couple props, namely:

• match which is an object that contains a mapping of the props and their values that you want to match against.
• only: by default, Switch will render every child that matches the match criteria with the given matcher. If you don't want this behavior, setting the only prop to true will make Switch render only the first match.
• isMatch an optional prop that allows you to implement your own matching logic, or use one of the strategies exported in matchers.

We can use Switch in the following way:

import { Switch, Match } from 'react-ms';
const App = () => (
  <Switch match={{ foo: 'bar' }}>
    <Match foo="bar">Bar</Match>
    <Match foo="baz">Baz</Match>
  </Switch>
);

In this example, it would only render the first Match with foo="bar". This matches the object given to the match prop for Switch, where the name of the prop, foo, matches the value of the prop, 'bar'.

Switch also can be used to render all matches of the match prop, or just the first match. This is what the only prop is used for. For example:

import { Switch, Match } from 'react-ms';

// In this case, `Switch` renders both `Bar 1` and `Bar 2`
const AllMatches = () => (
  <Switch match={{ foo: 'bar' }}>
    <Match foo="bar">Bar 1</Match>
    <Match foo="bar">Bar 2</Match>
  </Switch>
);

// In this case, `Switch` renders only `Bar 1` because of the `only` prop
const FirstMatch = () => (
  <Switch match={{ foo: 'bar' }} only>
    <Match foo="bar">Bar 1</Match>
    <Match foo="bar">Bar 2</Match>
  </Switch>
);

Further Examples

• Toggle based on state
• Toggle based on dynamic response

Inspiration

• https://www.youtube.com/watch?v=MkdV2-U16tc