Deep Cloning Objects in JavaScript, the Modern Way

• lodash

  187 58,868 5.1 JavaScript

  A modern JavaScript utility library delivering modularity, performance, & extras.

  

A lot of Lodash functions are implemented as combinations of other Lodash functions, so importing a single function actually imports half of Lodash under the hood:

https://github.com/lodash/lodash/blob/main/src/.internal/bas...

• mutative

  14 1,441 8.8 TypeScript

  Efficient immutable updates, 2-6x faster than naive handcrafted reducer, and more than 10x faster than Immer.

for those recommending Immer, check out Mutative or Limu instead (much faster)

https://github.com/unadlib/mutative

https://github.com/tnfe/limu

• SurveyJS

  surveyjs.io sponsored

  Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.

  

• limu

  8 201 8.2 JavaScript

  High performance immutable lib alternative to immer with the same api, based on shallow copy on read and mark modified on write mechanism.

  

for those recommending Immer, check out Mutative or Limu instead (much faster)

https://github.com/unadlib/mutative

https://github.com/tnfe/limu

• proposal-record-tuple

  73 2,423 2.7 HTML

  ECMAScript proposal for the Record and Tuple value types. | Stage 2: it will change!

  

If you’re reaching for structuredClone, what you really want is native immutable Record and Tuple syntax, and the companion “deep path properties” syntax which allows for efficient and ergonomic immutable updates:

- https://github.com/tc39/proposal-record-tuple

• proposal-deep-path-properties-for-re

  2 - -

• LJSON

  2 500 0.0 JavaScript

  JSON extended with pure functions.

• superjson

  9 3,678 7.6 TypeScript

  Safely serialize JavaScript expressions to a superset of JSON, which includes Dates, BigInts, and more.

  

I wasn't aware of this, I would like to give a shout out to superjson (https://github.com/blitz-js/superjson) which I had been using to solve this problem. I will look at this solution for next time.

• WorkOS

  workos.com sponsored

  The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

  

• monocle-ts

  7 1,016 0.0 TypeScript

  Functional optics: a (partial) porting of Scala monocle

Instead of the "deep path properties" syntax, you might want to take the opportunity to learn about functional lenses with monocle-ts

https://gcanti.github.io/monocle-ts/

Suggest a related project