Code-Golf Assembly Line

Question

Note: This challenge has nothing to do with actual assembly language.

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As the head of Code-Golf Factory Inc., you must create an assembly line to generate a specific piece of code. Today, the foreman has asked you to produce quines.

Specification:

In this challenge, the goal is to write a quine such that a proper subsection of it is also a quine.

This is code-golf, so the fewest bytes (of the main program) win. Standard loopholes are forbidden, and both the main program and the subsection must be true quines.

The subsection must be at least 2 characters shorter than the main program, meaning that the minimum score is 3 bytes.

You only need 1 subsection of your choice to work.

Answer 1

JavaScript (ES6), 14 bytes

f=_=>"f="+f+""

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This subsection is also a quine:

f=_=>"f="+f

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Answer 2

Jelly, 5 bytes

”ṘṘ10

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The subsection ”ṘṘ is also a quine. Try it online!

Answer 3

CJam, 10 bytes

11"`_~"`_~

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This is also a quine:

"`_~"`_~

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Answer 4

V, 13 bytes

ñÉÑ~"qpx:2i2i

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The subsection 2i2i is also a quine.

Answer 5

Alice, 13 bytes

"!&d<@o&dh.##

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This is also a quine:

"!&d<@o&dh.

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This modifies the standard quine by clearing the stack before the relevant string is pushed, and using the stack height to determine how many bytes to output. This allows any no-op to be added at the end.

Answer 6

Python 2, 60 bytes

This is a really simple answer, so there's probably a shorter one. This is just the standard Python quine twice. The trailing newline is required.

_='_=%r;print _%%_';print _%_
_='_=%r;print _%%_';print _%_

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Answer 7

Fission, 35 bytes

O abcdefghijklmnopqrstuvwxyz '#_OR"

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An atom starts at R travelling right. The " toggles print mode, so it wraps around and prints everything until it encounters " again. This stops printing and sets the mass of the atom to the number of characters printed (34). It wraps around again, and O destroys the atom and prints the ASCII character represented by its mass, which is ".

This contains the simple Fission quine,

'#_OR"

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Here, '# sets the mass of the atom to the ASCII value of # (35), and _ decrements it so that the O prints a quotation mark.

Fission, 8 bytes

'#_O  R"

Since the simple quine above starts at R and ends at O, any length quine can trivially be created by adding characters between the two.