db-vendo-client/p/db/ageGroup.js

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JavaScript
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'use strict'
const ageGroup = {
BABY: 'B',
CHILD: 'K',
YOUNG: 'Y',
ADULT: 'E',
SENIOR: 'S',
upperBoundOf: {
BABY: 6,
CHILD: 15,
YOUNG: 27,
ADULT: 65,
SENIOR: Infinity
}
}
const ageGroupFromAge = (age) => {
const {upperBoundOf} = ageGroup
if (age < upperBoundOf.BABY)
return ageGroup.BABY
if (age < upperBoundOf.CHILD)
return ageGroup.CHILD
if (age < upperBoundOf.YOUNG)
return ageGroup.YOUNG
if (age < upperBoundOf.ADULT)
return ageGroup.ADULT
if (age < upperBoundOf.SENIOR)
return ageGroup.SENIOR
throw new TypeError(`Invalid age '${age}'`)
}
module.exports = {
ageGroup,
ageGroupFromAge
}