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# Description Allows `polars str-lengths` to be used as an expression: <img width="826" alt="Screenshot 2024-09-04 at 13 57 45" src="https://github.com/user-attachments/assets/b74139e0-e8ba-4910-84c2-cf4be4a084b6"> # User-Facing Changes - `polars str-lengths` can be used as an expression. - char length is now the default. Use the --bytes flag to get bytes length.
Nushell core libraries and plugins
These sub-crates form both the foundation for Nu and a set of plugins which extend Nu with additional functionality.
Foundational libraries are split into two kinds of crates:
- Core crates - those crates that work together to build the Nushell language engine
- Support crates - a set of crates that support the engine with additional features like JSON support, ANSI support, and more.
Plugins are likewise also split into two types:
- Core plugins - plugins that provide part of the default experience of Nu, including access to the system properties, processes, and web-connectivity features.
- Extra plugins - these plugins run a wide range of different capabilities like working with different file types, charting, viewing binary data, and more.