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30-seconds-of-code/snippets/partial.md
2018-02-04 17:00:20 +02:00

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### partial
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!'
```