add-counter

Adds a counter integer to iterated values.

Installation

Requires Node.js 6.0.0 or above.

``bash
npm i add-counter
`

API

The module exports a single function.

$3

1. iter (iterable): The underlying iterable.
2. Optional: i (integer): The starting value of the counter. Normally this would be either 0 or 1. Defaults to 0.

$3

A generator that, for each iterated value x, yields [i++, x]

Example

`javascript
const addCounter = require('add-counter')

for (const [i, x] of addCounter(['a', 'b', 'c'])) {
// [0, 'a']
// [1, 'b']
// [2, 'c']
}
``