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suissa/filter09.js

Created September 9, 2018 05:45
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JavaScript - groupby - filter 09
Raw
filter09.js
const toNewGroup = (field) => (result, obj) => ({
...result,
[obj[field]]: [...(result[obj[field]] || []), obj]
})
const group = (list) => (field) =>
list.reduce(toNewGroup(field), {})
const groupBy = group(list)
console.log(groupBy("level"))
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