map-reverse


Apply a function to an array from then end to the beginning.

It's may be useful when iterating an array and deleting its elements at the same time.

Install

``
npm install map-reverse
`

Usage

Reverse iteration allows you to delete current element from an array when iterating.
`
var mapReverse = require('map-reverse');

var a = [1, 2, 3, 4, 5, 6, 7];

var b = mapReverse(a, function (item, index) {
if (item % 2)
a.splice(index, 1);

return item;
});

console.log(a);
//[ 2, 4, 6 ]

console.log(b);
//[ 7, 6, 5, 4, 3, 2, 1 ]
``