mapping.md

Mapping for Lodash and Ramda

Remeda functions are not necessarily drop-in replacements for the listed Lodash and Ramda functions. Just as the Lodash function may behave differently than the Ramda equivalent, the Remeda function may also behave differently from either or both. Be sure to consult each library's documentation when migrating.

Remeda	Lodash	Ramda
addProp	set	set
allPass	-	allPass
anyPass	-	anyPass
chunk	chunk	-
clamp	clamp	clamp
clone	cloneDeep	clone
compact	compact	-
concat	concat	concat
createPipe	-	-
difference	difference	difference
differenceWith	differenceWith	differenceWith
drop	drop	drop
dropLast	dropRight	dropLast
equals	isEqual	equals
filter	filter	filter
find	find	find
findIndex	findIndex	findIndex
findLast	findLast	findLast
findLastIndex	findLastIndex	findLastIndex
first	head	head
flatMap	flatMap	chain
flatten	flatten	flatten
flattenDeep	flattenDeep	flatten
forEach	forEach	forEach
forEachObj	forEach	forEachObjIndexed
groupBy	groupBy	groupBy
identity	identity	identity
isNil	isNil	isNil
indexBy	keyBy	indexBy
intersection	intersection	intersection
last	last	last
map	map	map
mapKeys	mapKeys	-
meanBy	meanBy	-
merge	assign	merge
mergeAll	assign	mergeAll
noop	noop	-
objOf	-	objOf
omit	omit	omit
omitBy	omitBy	-
once	once	once
partition	partition	partition
pathOr	get	pathOr
pick	pick	pick
pickBy	pickBy	pickBy
pipe	flow	pipe
prop	get	prop
purry	-	-
randomString	-	-
range	range	range
reduce	reduce	reduce
reject	reject	reject
reverse	reverse	reverse
set	set	set
sort	-	sort
sortBy	sortBy	sortBy
sortBy	orderBy	-
splitAt	-	splitAt
splitWhen	-	splitWhen
sumBy	sumBy	-
take	take	take
takeWhile	takeWhile	takeWhile
times	times	times
toPairs	toPairs	toPairs
type	-	type
uniq	uniq	uniq
uniqBy	uniqBy	uniqBy
uniqWith	uniqWith	uniqWith
zipObj	zipObj	zipObj

Helpful one-liners

Some lodash and ramda functions don't have a Remeda equivalent, but can be easily replaced with a one-liner in TypeScript. Some of the most common are listed below.

TypeScript one-liners are not necessarily drop-in replacements that provide the exact functionality of the listed Lodash and Ramda functions. Be sure to consult each library's documentation and to check what features you are relying on when migrating.

Lodash	Ramda	TypeScript
add	add	(x, y) => x + y
-	append	(arr, val) => [...arr, val]
constant	always	x => () => x
nth	nth	n => a[n]
-	path	a?.b?.c
-	propEq	x => x.a === value
-	propOr	x => x.a ?? defaultValue
words	-	str => str.split(/\s+/)