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30-seconds-of-code/snippets/partial.md
Angelos Chalaris 611729214a Snippet format update
To match the starter (for the migration)
2019-08-13 10:29:12 +03:00

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---
title: partial
tags: function,intermediate
---
Creates a function that invokes `fn` with `partials` prepended to the arguments it receives.
Use the spread operator (`...`) to prepend `partials` to the list of arguments of `fn`.
```js
const partial = (fn, ...partials) => (...args) => fn(...partials, ...args);
```
```js
const greet = (greeting, name) => greeting + ' ' + name + '!';
const greetHello = partial(greet, 'Hello');
greetHello('John'); // 'Hello John!'
```