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# This documentation is meant to be read on [final-form.org](https://final-form.org/docs/final-form-arrays/api). Links may not work on Github.com.
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# API
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This library provides the following Final Form [mutators](/docs/final-form/types/Mutator). They are intended to mimic the array mutations available [`Array.prototype`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/prototype) in JavaScript.
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The `name` argument always refers to the field to be mutated.
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### `form.mutators.concat`
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```ts
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(name:string, value:Array<any>) =>void
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```
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Concatenates an array at the end of the field array.
# This documentation is meant to be read on [final-form.org](https://final-form.org/docs/final-form-arrays/getting-started). Links may not work on Github.com.
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# Getting Started
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This library provides field array management functionality as a plugin [mutator](/docs/final-form/types/Mutator) to Final Form.
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