l00p

Getting useful loop information while looping.

This package has been created for help mapping items in, just say, React:

Without l00p:

...
<div>
{some.stuff.collection.map((item, i) => {
    const first = i === 0
    const last = i === some.stuff.collection.length - 1
    return (
        <div className={first ? 'class' : 'anotherClass'}>
            {item.name}
        </div>
    )
})}
</div>
...

With l00p:

import loop from 'l00p'
...
<div>
{loop(some.stuff.collection, (item, { first }) => (
    <div className={first ? 'class' : 'anotherClass'}>
        {item.name}
    </div>
))}
</div>
...

Here the complete list of values provided while looping:

• index: The current index.
• first: A boolean true when is ther fist element of collection.
• last: A boolean true when is ther last element of collection.
• reverseIndex: The index from the end (collection.lentgth - index).
• even: A boolean true when the index is even.
• odd: A boolean true when the index is odd.