public static readonly
fields are a little unusual; public static
properties (with only a get
) would be more common (perhaps backed by a private static readonly
field).
const
values are burned directly into the call-site; this is double edged:
- it is useless if the value is fetched at runtime, perhaps from config
- if you change the value of a const, you need to rebuild all the clients
- but it can be faster, as it avoids a method call…
- …which might sometimes have been inlined by the JIT anyway
If the value will never change, then const is fine – Zero
etc make reasonable consts ;p Other than that, static
properties are more common.