---
name: "Array.zipWith"
section: "3kaya"
platform: "linux"
package: "kaya"
version: "0.4.4-6.2"
release: "Debian 8 (Jessie)"
platforms: ["linux"]
url: "https://new.carta.tech/Array.zipWith"
---

# Array.zipWith(3kaya)

Map a function across two arrays.

## NAME

Array::zipWith - Map a function across two arrays.

## SYNOPSIS

**\[c\] zipWith(** *c(a, b) f, \[a\] xs, \[b\] ys* **)**

## ARGUMENTS

**f** The function to use

**xs** The first array

**ys** The second array

## DESCRIPTION

Returns the array created by applying function *f* to every pairwise elements of *xs* and *ys*\
  If the arrays are of different lengths, then the resulting array will be the same size as the shorter of the two input arrays.

The function must take **xs\[0\]**  and **ys\[0\]**  to give **zs\[0\]**  and so on.

-

   Int sum(Int a, Int b) {\
        return a+b;\
    }

   Void main() {\
        xs = \[1,2,3,4,5\];\
        ys = \[7,8,9\];\
        zs = zipWith(sum,xs,ys);\
    // zs = \[8,10,12\];\
    }

## AUTHORS

Kaya standard library by Edwin Brady, Chris Morris and others (kaya@kayalang.org). For further information see http://kayalang.org/

## LICENSE

The Kaya standard library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License (version 2.1 or any later version) as published by the Free Software Foundation.

## RELATED

**Array.map (3kaya)**

**Array.zip (3kaya)**