add-counter
v1.0.0 add iterator iteration counter
add-counter
Adds a counter integer to iterated values.
Installation
Requires Node.js 6.0.0 or above.
npm i add-counter
API
The module exports a single function.
Parameters
iter
(iterable): The underlying iterable.- Optional:
i
(integer): The starting value of the counter. Normally this would be either0
or1
. Defaults to0
.
Return Value
A generator that, for each iterated value x
, yields [i++, x]
Example
const addCounter = require('add-counter')
for (const [i, x] of addCounter(['a', 'b', 'c'])) {
// [0, 'a']
// [1, 'b']
// [2, 'c']
}