Microscript, 1 byte

h

This produces no ouput, as h suppresses the language's implicit printing. Removing the sole character produces a program whose output is 0\n.

I'll try to come up with a better answer later.

EDIT ON NOVEMBER 17:

This also works in Microscript II, with the exception that, instead of yielding 0\n, the empty program yields null.

Microscript, 1 byte

h

This produces no ouput, as h suppresses the language's implicit printing. Removing the sole character produces a program whose output is 0\n.

I'll try to come up with a better answer later.

EDIT ON NOVEMBER 17:

This also works in Microscript II, with the exception that, instead of yielding 0\n, the empty program yields null.

Microscript, 1 byte

h

This produces no ouput, as h suppresses the language's implicit printing. Removing the sole character produces a program whose output is 0\n.

I'll try to come up with a better answer later.

Microscript, 1 byte

h

This produces no ouput, as h suppresses the language's implicit printing. Removing the sole character produces a program whose output is 0\n.

I'll try to come up with a better answer later.

EDIT ON NOVEMBER 17:

This also works in Microscript II, with the exception that, instead of yielding 0\n, the empty program yields null.

Microscript, 1 byte

h

This produces no ouput. Removing the sole character produces a program whose output is 0\n.

I'll try to come up with a better answer later.

Microscript, 1 byte

h

This produces no ouput, as h suppresses the language's implicit printing. Removing the sole character produces a program whose output is 0\n.

I'll try to come up with a better answer later.