PouchDB upsert and putIfNotExists functions

Upsert [](https://travis-ci.org/pajtai/upsert) ===

Maps for emplace, TC39 proposal-upsert implementation

TypeScript definitions for pouchdb-upsert

add postgres upsert mutations to postgraphile

A plugin for Graphile to generate upsert mutations.

An upsert function for knex.

Fast LRU and TTL cache with upsert and promise option

PostGraphile v5 plugin for bulk insert, upsert, update, and delete mutations with ON CONFLICT handling

UPSERT (insert/update) extension to oracledb.

Transactionally upsert data into a postgres db using knex

add postgres upsert mutations to postgraphile

Say you have a TypeORM entity `Post` and you want to atomically upsert:

JSON object diff for upsert

upsert function for typeorm

Zero-dependency TypeScript library for immutable array operations: filter nullables, upsert/toggle by key, deduplicate, enumerate, and more.

HubSpot CRM server destination for walkerOS (@hubspot/api-client, custom events + contact upsert)

A bookshelf plugin for performing upserts

Upsert bulk plugin for PouchDB

`js-upsert` is a lightweight JavaScript library designed to simplify updating deeply nested properties within objects. It provides an intuitive and efficient way to manage complex object structures, ensuring non-destructive updates. This makes `js-upsert`