react-each

A simple React component used for rendering collections and arrays.

When you see this component, you may be asking "Why did you make this? You can just use the 'map' function of your item array!". So, here are the reasons that you might use this component instead of the map function:

• Since you're using a component, you can "connect" it using connect from the redux-react library.
• You have the ability to cleanly implement rendering when the items array is either not defined or empty (see else prop below).
• You may find that your JSX code is more clean and easier to read (though, I would recommend using map if you don't need this for the first two reasons that have been listed for efficiency reasons).

Storybook

Changelog

Install

$ npm i --save react-each

Usage

import React from 'react';
import Each from 'react-each';
 
 
export default function MyComponent(props) {
  return (
    {/* ... */}
 
      <Each items={props.items} renderItem={(item, index, { itemsLastIndex }, items) => (
        // Render item...
      )} else={() => (
        // Render component(s) when list is not defined or is empty...
      )} />
 
    {/* ... */}
  );
}

Props

• items ?(Array|Function)

  Array of items (or function which returns an array of items) to use for rendering.

• renderItem !Function - REQUIRED

  Render function called for each item found in the given items array.

• else ?Function

  Render function called when items array is not defined or is empty.

• startIndex ?Number (Default: 0)

  Index to start at (inclusively) when rendering items (all items that come before startIndex will not be rendered).

• endIndex ?Number (Default: (items.length - 1))

  Index to end at (inclusively) when rendering items (all items that come after endIndex will not be rendered).

License

ISC License (ISC)

Copyright (c) 2019, Brandon D. Sara (http://bsara.pro/)

Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.

THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.