zhi An

Developer, AI and machine learning enthusiast.

[zhi An @jerryan999]

DuckDB is an embedded, in-process, column-oriented SQL OLAP database management system that is designed to be used in data analysis.

Say Goodbye to Slow Analytic Queries — How to Use DuckDB in Python for Lightning-Fast Results!

https://t.co/tf0hZ9EJbZ

[zhi An @jerryan999]

"Model isn't availableSwitch to a different model from the model picker to continue"

What's wrong here?

[zhi An @jerryan999]

推荐一个 AI 接口聚合站，OpenAI 协议兼容、按量计费，开发接入比较省事 https://t.co/iHkqxL1hL3

[zhi An @jerryan999]

@CryptoBei85 @FFEE_2025 https://t.co/4oDeKTclUH 试试这个，win11友好

[zhi An @jerryan999]

@FFEE_2025 可以试试这个https://t.co/4oDeKTclUH 做了一些小的优化：自动监测和升级openclaw代码；windows版一键安装; 新增qqbot支持 ；开发者终端支持

[zhi An @jerryan999]

Automating Browser Bookmarks Import From Chrome to Safari with AppleScript https://t.co/CcSbgicUza

[zhi An @jerryan999]

Afero: Mocking File Systems for UniTesting in Go https://t.co/Q60e5hSudG

[zhi An @jerryan999]

How to achieve its most important character namely immutability using Golang.
1. Private structs Fields
2. No Setter Methods
3. Optional Getter methods
4. Pure Functions

@gitconnected DDD Class — How to Ensure Immutability of Value Objects in Golang https://t.co/BIkzdCLPSU

[zhi An @jerryan999]

3. easier to reason about equality and perform operations like sorting and filtering.

[zhi An @jerryan999]

In Domain-Driven Design (DDD), a value object is an immutable object that represents a concept or a quantity that is important to the domain. Value objects are distinguished from entities in that they have no identity and are defined by their attributes. https://t.co/dwRiTx5uJO

[zhi An @jerryan999]

2. helps to prevent bugs and makes the code easier to reason about.

[zhi An @jerryan999]

This makes your code more modular and easier to maintain, since you can change the selection criteria without having to modify the code that performs the selection.

Ddd
Programming

[zhi An @jerryan999]

The Specification pattern is a design pattern that allows you to define a set of criteria for selecting objects in a collection.

@gitconnected
https://t.co/liFN1270FR

[zhi An @jerryan999]

The benefit of using the Specification pattern is that it allows you to separate the selection criteria from the code that performs the selection.

[zhi An @jerryan999]

Factoring Business Constraints into Separate Methods in Domain-Driven Design.

Business constraints play an important role in model design. They often emerge implicitly, and expressing them explicitly can greatly improve a design.

https://t.co/IRUkE979zg

[zhi An @jerryan999]

In Domain-Driven Design (DDD), it is common to factor business constraints into methods to ensure that they are enforced consistently throughout the application.

[zhi An @jerryan999]

3. I can reverse the uuid1 string to get the original timestamp and mac address?

[zhi An @jerryan999]

Say Something About UUID

https://t.co/c4OmQI0VL5

[zhi An @jerryan999]

2. uuid4 generating UUIDs using random numbers.