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renameAll deleting keys #39

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merged 2 commits into from Sep 10, 2020
Merged

renameAll deleting keys #39

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0cdc978
fixing renameAll to allow a from and a to to have the same name
jesspoemape Sep 1, 2020
9474df3
not interating twice
jesspoemape Sep 4, 2020
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20 changes: 7 additions & 13 deletions src/renameAll.js
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Expand Up @@ -2,22 +2,16 @@ const curry = require('ramda/src/curry')

// renameAll :: { k: v } -> { k: v } -> { k: v }
const renameAll = (renames, obj) => {
obj = Object.assign({}, obj)

for (let frum in renames) {
if (!(frum in obj)) continue

const to = renames[frum]

if (typeof to === 'object') {
obj[frum] = renameAll(to, obj[frum])
const newObj = {}
for (let prevKey in obj) {
const nextKey = renames[prevKey] || prevKey
if (typeof nextKey === 'object') {
newObj[prevKey] = renameAll(renames[prevKey], obj[prevKey])
} else {
obj[to] = obj[frum]
delete obj[frum]
newObj[nextKey] = obj[prevKey]
}
}

return obj
return newObj
}

module.exports = curry(renameAll)
12 changes: 9 additions & 3 deletions test/renameAll.js
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Expand Up @@ -8,23 +8,29 @@ describe('renameAll', () => {
name: 'bird',
sounds: {
call: 'chirp'
}
},
title: 'My title',
latestTitle: 'haha (business)',
}

const renames = {
color: 'appearance',
count: 'number',
sounds: {
call: 'say'
}
},
latestTitle: 'title',
title: 'updatedTitle',
}

const expected = {
appearance: 'red',
name: 'bird',
sounds: {
say: 'chirp'
}
},
title: 'haha (business)',
updatedTitle: 'My title',
}

it('renames multiple nested properties on an object using a name-map', () =>
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