arangojs
type-fest
arangojs | type-fest | |
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2 | 32 | |
593 | 13,261 | |
0.2% | - | |
8.5 | 9.0 | |
20 days ago | 5 days ago | |
TypeScript | TypeScript | |
Apache License 2.0 | Creative Commons Zero v1.0 Universal |
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arangojs
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All JavaScript and TypeScript features of the last 3 years explained
We actually did the same for ArangoDB (I think we first did this in 2015, I remember being surprised nobody had done something similar for SQL at the time). Here's the JS driver's current implementation of it:
https://github.com/arangodb/arangojs/blob/main/src/aql.ts#L1...
Basically the `aql` template tag returns an object that can also be fed back into it and we also deduplicate arguments to avoid sending redundant data over the wire. There's also an escape hatch via a helper function (`aql.literal`) in cases where you need to insert literals that aren't known at compile time (e.g. you load query filters from a configuration file).
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what databases will prisma support next?
Their official Typescript client is well maintained and quite powerful, it would be very useful in an eventual integration with Prisma.
type-fest
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Adding type safety to object IDs in TypeScript
Related: https://github.com/sindresorhus/type-fest/blob/main/source/o...
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Enforcing Localization through Types
Typescript doesn’t natively provide an Opaque type that we can use to define a string that has already been localized. If the data looks like a string, Typescript will consider it a string. We can however use utility types that simulate opaque types, like the Opaque definition in type-fest:
- Is there a better way to do read-only types
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Boost Your JavaScript with JSDoc Typing
With these powerful features, you can create dynamic and expressive types. One last thing I want to mention before moving on, is that you can install libraries with which you can add more types to your project like type-fest or utility-types. These libraries contain a lot of useful types that you can use in your project.
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Essential Code Organization Principles
Also, it’s not as restrictive as mutability tools — if you know what you are doing and want to ignore this limitation for a particular case, you can apply the -readonly modifier or the Writeable type from type-fest or ts-essentials.
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Best practice for typing server data for get vs post in client code
Remember you can derive one type from another type so you can make sure they don't diverge. SetOptional type util
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All JavaScript and TypeScript features of the last 3 years explained
Some folks have built whole SQL databases and DSL compilers in the TS type system. These tend to be toy projects with disclaimers not to use them. But the type system being Turing complete[0] (for better or worse), pretty much whatever you can imagine. This project[1] is one I actually return to frequently for practical ideas.
0: https://github.com/microsoft/TypeScript/issues/14833
1: https://github.com/sindresorhus/type-fest
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Question on how to handle an object that can have different states and avoid assertions.
Have a look at SetRequired and SetOptional in type-fest
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Preventing more parameters being passed than needed by a type definition?
Try the Exact method provided by Type Fest, looks like it does what you're looking for
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Creating a derived type of only required parameters from a base type?
This is a fairly common scenario and available via libraries like type-fest or implementable with a couple lines of code.
What are some alternatives?
typeorm - TypeORM module for Nest framework (node.js) 🍇
ts-toolbelt - 👷 TypeScript's largest type utility library
Prisma - Next-generation ORM for Node.js & TypeScript | PostgreSQL, MySQL, MariaDB, SQL Server, SQLite, MongoDB and CockroachDB
runtypes - Runtime validation for static types
dndb - A Deno 🦕 persistent, embeddable and optimized NoSQL database for JS & TS
tss-react - ✨ Dynamic CSS-in-TS solution, based on Emotion
nodejs-datastore - Node.js client for Google Cloud Datastore: a highly-scalable NoSQL database for your web and mobile applications.
ts-essentials - All essential TypeScript types in one place 🤙
prisma1 - 💾 Database Tools incl. ORM, Migrations and Admin UI (Postgres, MySQL & MongoDB) [deprecated]
zod - TypeScript-first schema validation with static type inference
DataStax Node.js Driver for Apache Cassandra - DataStax Node.js Driver for Apache Cassandra
variant - Variant types in TypeScript