Double-quoted-string

Double quoted strings and sub-expressions with double quotes

The help topic

help about_Quoting_Rules

says

Also, in a double-quoted string, expressions are evaluated, and the
result is inserted in the string. For example:

    "The value of $(2+3) is 5."

The output of this command is:

    The value of 5 is 5.

but it does not emphasize the following not obvious fact. In the expression result, two consequent double quotes or a backtick followed by a double quote are replaced with one double quote.

In other words, the following two strings

".. $('""') .."
".. $('`"') .."

are evaluated as

.. " ..
.. " ..

instead of rather expected

.. "" ..
.. `" ..

The script Test-1.expression.ps1 shows the issue.

• PowerShell/issues/3039