react-bind-component

Type safe Function.prototype.bind for React components

Usage

import bindComponent from 'react-bind-component';

interface FooProps {
  foo: number;
  bar: number;
}

const Foo = (props: FooProps) => null;

const BoundFoo = bindComponent(Foo, { bar: 2 });

ReactDOM.render(<BoundFoo foo={1} />);

Just like Function.prototype.bind, bindComponent creates a new component that renders the original one with the supplied props plus any other props that are passed when the new component is rendered.

Examples

Partially applying components

Using the render props technique we can design components that delegate parts of their rendering logic to methods passed through props. We can then bind these components to various implementations of those render props:

import bindComponent from 'react-bind-component';

interface ListProps {
  items: string[];
  renderItem: (item: string) => ReactElement;
}

const List = (props: ListProps) => <ul>
  {props.items.map(item => <li>
    {props.renderItem(item)}
  </li>
</ul>;

const ListWithTextLabels = bindComponent(List, {
  renderItem: x => <span>{x}</span>
});

const ListWithIcons = bindComponent(List, {
  renderItem: x => <img src={`/imgs/${x}.png`} />
});