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lee 9af18a1956 examples: curry entries 4 years ago
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README.md examples: curry entries 4 years ago

README.md

Curry Entries

Instructions

This exercise consists in creating curry functions to apply in the object's entries. You will have to create the following curry functions:

  • defaultCurry curries two objects in which the second object overrides the values of the first. If the key is not present then add it with the corresponding value.

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'
}

  • mapCurry replicates function .map, where first entry is a function, second is an object.
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  },
}
  • reduceCurry replicates function .reduce, where first entry is function, second is (object, initial value).
reduceCurry((acc, [k, v]) => (acc += v))({ a: 1, b: 2, c: 3 }, 0)
// output
6
  • filterCurry replicates function .filter, where first entry is function, second is object.
filterCurry(([k, v]) => typeof v === 'string' || k === 'arr')({
  str: 'string',
  nbr: 1,
  arr: [1, 2],
})
// output
{ str: 'string', arr: [1, 2] }

Using each curry function create the following functions with one parameter personnel:

  • reduceScore that will return the total value of the scores of the persons who use the force
  • filterForce that will return the force users with shootingScores equal or higher than 80
  • mapAverage that will return a new object with the propriety averageScore that is the average of the scores for each person

Notions

Code provided

all code provided will be added to your solution and doesn't need to be submited.

// 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  },
}