Which answer is correct?

Use `str * 1` or `str - 0`. Arithmetic operators coerce strings to numbers.

— hack_lover

Use the `+` prefix: `+str`. Shortest way to convert, same as `Number()`.

— terse_coder

Use `parseInt(str)`. This is the standard way to convert strings to numbers.

— classic_js

Use `Number(str)`. It handles integers, floats, and edge cases consistently. Returns `NaN` for non-numeric strings.

— type_safe