mootari opened a new issue, #192: URL: https://github.com/apache/arrow-js/issues/192
### Describe the bug, including details regarding any error messages, version, and platform. Several Generics have `any` set as default value instead of defaulting to the type from which they extend, like the following example: ```ts Field<T extends DataType = any> ``` Unfortunately this effectively removes all type guarantees when properties that inherit the type are passed down. Example ([playground link](https://www.typescriptlang.org/play/?#code/JYWwDg9gTgLgBDAnmApnA3gMWCgNgEwBo4ARAQxjIBVkUBfOAMyghDgCIywyBjACxQBaMlBYB3dgG4AUNPYA7CPDIJa7OAGcKwDYxwa42PPgDa7JKnYBdSXAD0d0hBQHF8FKOhy3cFRZTqWjA6ei6GOAQAPOSUNKgAfGb+1rYOcACinlAa0kA)): ```ts import type {Field, DataType} from "apache-arrow"; "not a type" satisfies Field["type"]; // Does not error "not a type" satisfies Field<DataType>["type"]; // Errors ``` The generics should instead define their base type as default type: ```ts Field<T extends DataType = DataType> ``` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@arrow.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
