Prerequisites

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Steps to reproduce

Passing a bareword argument to a parameter that isn't type-constrained is parsed as a number if it looks like one.

The resulting value self-identifies as a number and mostly acts as such, but it is wrapped in an invisible [psobject] instance in which the original string representation is cached.

In the context of -f, this string representation surfaces unexpectedly, meaning that the value is unexpectedly not treated as a number:

& { param($p) $p.GetType().FullName; '{0:N2}' -f $p } 0x1a

Expected behavior

System.Int32
26.00

Actual behavior

System.Int32
0x1a

Error details

No response

Environment data

PowerShell Core 7.3.0-preview.3

Visuals

No response