Find Suitable Sport

index.js

const sports = [{
  id: "Basketball",
  age: {
    min: 18,
    max: 30
  },
  males: {
    min: 40,
    max: 60
  },
  females: {
    min: 43,
    max: 60
  }
}, {
  id: "Bicycling",
  age: {
    min: 18,
    max: 26
  },
  males: {
    min: 62,
    max: 74
  },
  females: {
    min: 47,
    max: 57
  }
}, {
  id: "Canoeing",
  age: {
    min: 18,
    max: 26
  },
  males: {
    min: 55,
    max: 67
  },
  females: {
    min: 47,
    max: 67
  }
}, {
  id: "Gymnastics",
  age: {
    min: 18,
    max: 22
  },
  males: {
    min: 52,
    max: 58
  },
  females: {
    min: 36,
    max: 50
  }
}, {
  id: "Swimming",
  age: {
    min: 10,
    max: 25
  },
  males: {
    min: 50,
    max: 75
  },
  females: {
    min: 40,
    max: 60
  }
}]

const findSport = (HRrest, age, gender) => {
  const getAge = Number(age)

  if (getAge < 0 || HRrest < 0) {
    return "Error: Value must not be negative."
  } else {
    const HRMax = 220 - getAge
    const VO2Max = 15 * (HRMax / HRrest)
    const getGender = gender.toLowerCase()

    return sports.find(item => (
      getAge >= item.age.min && getAge <= item.age.max
    ) && getGender === "male" || getGender === "m" ? (
      VO2Max >= item.males.min && VO2Max <= item.males.max
    ) : (
      VO2Max >= item.females.min && VO2Max <= item.females.max
    )).id
  }
}

findSport(50, 20, "m")