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## Curry Entries
### Instructions
You're going to create some curry functions, to apply to the object's entries.
Create `defaultCurry`, which curries two objects. It mergers the objects together. If the key exists in both objects, the value from the second object override the value from the first object.
```js
defaultCurry({
http: 403,
connection: 'close',
contentType: 'multipart/form-data',
})({
http: 200,
connection: 'open',
requestMethod: 'GET'
})
// output
{
http: 200,
connection: 'open',
contentType: 'multipart/form-data',
requestMethod: 'GET'
}
```
Create `mapCurry`, which replicates function `.map` (but for an object). The first entry is the function, and the second entry is the object.
```js
mapCurry(([k, v]) => [`${k}_force`, v])(personnel)
// output
{
lukeSkywalker_force: { id: 5, pilotingScore: 98, shootingScore: 56, isForceUser: true },
sabineWren_force: { id: 82, pilotingScore: 73, shootingScore: 99, isForceUser: false },
zebOrellios_force: { id: 22, pilotingScore: 20, shootingScore: 59, isForceUser: false },
ezraBridger_force: { id: 15, pilotingScore: 43, shootingScore: 67, isForceUser: true },
calebDume_force: { id: 11, pilotingScore: 71, shootingScore: 85, isForceUser: true },
}
```
Create `reduceCurry`, which replicates the `.reduce` method (but from an object). The first entry is the function, and the second is the object and initial value).
```js
reduceCurry((acc, [k, v]) => (acc += v))({ a: 1, b: 2, c: 3 }, 0)
// output
6
```
Create `filterCurry` which replicates the `.filter` method (but for an object). The first entry is the function, and the second is an object.
```js
filterCurry(([k, v]) => typeof v === 'string' || k === 'arr')({
str: 'string',
nbr: 1,
arr: [1, 2],
})
// output
{ str: 'string', arr: [1, 2] }
```
4 years ago
Using each curry function create the following functions with a parameter `personnel`:
- `reduceScore`: that will return the total value of the scores
of the people who use the force. (this function can have one additional parameter).
- `filterForce`: that will return the force users with `shootingScores` equal to or higher than 80.
- `mapAverage`: that will return a new object with the property `averageScore`, that is the average of the scores for each person.
### Code provided
> The provided code will be added to your solution, and does not need to be submitted.
```js
// prettier-ignore
const personnel = {
lukeSkywalker: { id: 5, pilotingScore: 98, shootingScore: 56, isForceUser: true },
sabineWren: { id: 82, pilotingScore: 73, shootingScore: 99, isForceUser: false },
zebOrellios: { id: 22, pilotingScore: 20, shootingScore: 59, isForceUser: false },
ezraBridger: { id: 15, pilotingScore: 43, shootingScore: 67, isForceUser: true },
calebDume: { id: 11, pilotingScore: 71, shootingScore: 85, isForceUser: true },
}
```
### Notions
- [filter](https://devdocs.io/javascript/global_objects/array/filter)
- [map](https://devdocs.io/javascript/global_objects/array/map)
- [reduce](https://devdocs.io/javascript/global_objects/array/reduce)
- [entries](https://devdocs.io/javascript/global_objects/object/entries)
- [fromentries](https://devdocs.io/javascript/global_objects/object/fromentries)
- [stackoverflow what-is-currying?](https://stackoverflow.com/questions/36314/what-is-currying)