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@sscotth
Created September 18, 2019 15:51
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JS Object.map
const obj = { foo: 'hello', bar: 'world' }
const updatedObj = Object.fromEntries(
Object.entries(obj).map(([key, val]) => [
key,
val.toUpperCase(),
]),
)
// {foo: "HELLO", bar: "WORLD"}
@sscotth
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sscotth commented Sep 18, 2019

for the adventurous:

Object.map = (obj, cb) => Object.fromEntries(
  Object.entries(obj).map(([key, val]) => [
    key,
    cb(val),
  ]),
)

const obj = { foo: 'hello', bar: 'world' }

Object.map(obj, val => val.toUpperCase())

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