🐛 noDuplicateJsxProps should be case-sensitive

[maccuaa]

Environment information

N/A

What happened?

The current implementation of the noDuplicateJsxProps rule is case-sensitive but JSX handles props in a case-insensitive manner so 2 props with the same name but different cases are treated separately and are valid.

A good example of this is the MUI TextField component which has inputProps and InputProps props which when used cause the Biome lint command to fail.

Note that this bug isn't about the semantics of whether or not using 2 props with the same name is good practice or not (IMO it's bad practice).

Expected result

The noDuplicateJsxProps rule should be case-sensitive.

Code of Conduct

• I agree to follow Biome's Code of Conduct

[maccuaa]

thanks for the quick turnaround! 👏

[oliviertassinari]

Note that this bug isn't about the semantics of whether or not using 2 props with the same name is good practice or not (IMO it's bad practice).

We mostly fixed it mui/material-ui#11377 😄