array-reduce-sum

array-reduce-sum
================
Package for summing numbers in an array.

* Returns sum of numbers in an array.
* Takes an optional second argument for initial value

Behavior similar to Array.prototype.reduce() accumulator pattern that takes value inputs in an array from left-to-right and reduces to a single value.

``Javascript
var sum = [0, 1, 2, 3].reduce(function(acc, val) {
return acc + val;
}, 0);
// sum is 6

`

Installation
-----

`bash
npm install array-reduce-sum --save
`

Syntax
-----

`Javascript
var fn = require('array-reduce-sum');
fn(array, [initialValue]); // initialValue optional
// initialValue should be a number not a string
`

Usage
-----


`Javascript
var sumArray = require('array-reduce-sum');

sumArray([5]);
// => 5

sumArray([5,10]);
// => 15

// Coerces numbers as strings to behave like numbers
sumArray(["5", "10"]);
// => 15

// Optional second argument with initial value
sumArray([5,10], 20);
// => 35
``

Support
-----

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