CRDT for add/remove

[dfahlander]

• number or bigint properties (add/subtract)
• array properties (treating array as a set)

Mathematical addition Example

import { add } from "dexie";
db.friends.update(1, {
  age: add(1)
});
// Equivalent to:
db.friends.update(1, friend => ++friend.age);
// ...but works consistently in sync

Set addition Example

import { add } from "dexie";
db.friends.update(1, {
  interests: add(["football"])
});
// Equivalent to:
db.friends.update(1, friend => friend.interests = [...friend.interests, "football"].sort());
// ...but works consistently in sync

Checklist

• Unit tests
• Implementation
• Support in Dexie Cloud Server (version 1.6.0)
• Update documentation of Consistency in Dexie Cloud
• Add documentation of PropModification
• Add documentation of replacePrefix()
• Add documentation of add()
• Add documentation of remove()
• Update documentation of Collection.modify()
• Update documentation of Table.update()