Add DeepmergeInto

[RebeccaStevens]

Discussed in #49

^{Originally posted by NightProgramming February 15, 2022}
Sometimes it's useful to not create a new merge result object, but to have an existing object, that is the target of the whole merging process. Right now, I think, I would have to do something like:

// We want to merge newestData into myDataObject:

const result = deepmerge(myDataObject, newestData);
Object.assign(myDataObject, result);

If there was a signature like deepmerge(target, ...sources) the performance might be better because no intermediate object (result) needs to be created. Also there would be less code required (no Object.assign). And if we don't want to merge into any existing object we could do const result = deepmerge({}, myDataObject, newestData));. Note: The return value is the same object we used as first argument. Without having it returned by deepmerge we would need a bit more code: const result = {}; deepmerge(result, myDataObject, newestData);

[bombillazo]

This feature would be great! Im needing it at the moment :)

[rendomnet]

Count me in!

[github-actions]

🎉 This issue has been resolved in version 4.3.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀

[github-actions]

🎉 This issue has been resolved in version 5.0.0-next.2 🎉

The release is available on:

• npm package (@next dist-tag)
• GitHub release

Your semantic-release bot 📦🚀