47 lines
851 B
Markdown
47 lines
851 B
Markdown
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# array-reduce
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`[].reduce()` for old browsers
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[](https://ci.testling.com/substack/array-reduce)
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[](http://travis-ci.org/substack/array-reduce)
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# example
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```
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var reduce = require('array-reduce');
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var xs = [ 1, 2, 3, 4 ];
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var sum = reduce(xs, function (acc, x) { return acc + x }, 0);
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console.log(sum);
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```
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output:
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```
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10
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```
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# methods
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``` js
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var reduce = require('array-reduce')
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```
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## var res = reduce(xs, f, init)
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Create a result `res` by folding `acc = f(acc, xs[i], i)` over each element in
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the array `xs` at element `i`. If `init` is given, the first `acc` value is
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`init`, otherwise `xs[0]` is used.
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# install
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With [npm](https://npmjs.org) do:
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```
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npm install array-reduce
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```
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# license
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MIT
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