Duplication · guardian/interactive-the-empty-doorway-stories

Duplication Overall

8% duplication:

2,284 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
198 duplicated lines

16 duplicates

dependency graphs: 2D graph | 2D graph (with duplicates)... | 3D graph | 3D graph (with duplicates)...

Duplication per Extension

Duplication per Component (primary)

Longest Duplicates

The list of 16 longest duplicates.

See data for all 16 duplicates...

Size	#	Folders	Files	Lines	Code
15	x 2	src/css src/css	_methodology.scss _tributes.scss	41:56 (23%) 9:24 (37%)	view
10	x 2	src/css src/css	_methodology.scss _tributes.scss	61:70 (15%) 32:41 (25%)	view
9	x 2	ROOT ROOT	gulpfile.babel.js gulpfile.babel.js	207:215 (4%) 218:226 (4%)	view
9	x 2	src/css src/css	_tribute-animation.scss _tribute-animation.scss	41:50 (13%) 71:80 (13%)	view
8	x 2	ROOT ROOT	gulpfile.babel.js gulpfile.babel.js	258:267 (3%) 275:284 (3%)	view
8	x 2	src/css src/css	_article-nav.scss _header.scss	66:74 (8%) 114:121 (6%)	view
8	x 2	src/css src/css	_header.scss _methodology.scss	115:122 (6%) 9:16 (12%)	view
7	x 2	src/templates src/templates	main.html main.html	306:321 (3%) 369:384 (3%)	view
7	x 2	src/templates src/templates	main.html main.html	509:524 (3%) 718:733 (3%)	view
7	x 2	src/templates src/templates	main.html main.html	879:894 (3%) 918:933 (3%)	view
7	x 2	src/css src/css	_article-nav.scss _methodology.scss	67:74 (7%) 9:15 (11%)	view
6	x 2	src/css/guss-typography src/css/guss-typography	_typography.mixins.scss _typography.mixins.scss	188:193 (5%) 200:205 (5%)	view
6	x 2	src/css src/css	_methodology.scss _tributes.scss	32:38 (9%) 4:9 (15%)	view
6	x 2	src/css src/css	_article-nav.scss _tribute.scss	69:74 (6%) 4:9 (2%)	view
6	x 2	src/css src/css	_header.scss _tribute.scss	116:121 (4%) 4:9 (2%)	view
6	x 2	src/css src/css	_methodology.scss _tribute.scss	10:15 (9%) 4:9 (2%)	view

Most Frequent Duplicates

The list of 2 most frequently found duplicates.

Size	#	Folders	Files	Lines	Code
6	x 4	src/css src/css src/css src/css	_methodology.scss _tribute.scss _article-nav.scss _header.scss	10:15 (9%) 4:9 (2%) 69:74 (6%) 116:121 (4%)	view
6	x 3	src/css src/css src/css	_article-nav.scss _header.scss _methodology.scss	67:73 (6%) 115:120 (4%) 9:14 (9%)	view

About This Analysis

For duplication, we look at places in code where there are 6 or more lines of code that are exactly the same.
Before duplication is calculated, the code is cleaned to remove empty lines, comments, and frequently duplicated constructs such as imports.
You should aim at having as little as possible (<5%) of duplicated code as high-level of duplication can lead to maintenance difficulties, poor factoring, and logical contradictions.

Learn more...

To learn more about duplications and techniques for eliminating duplication, Sokrates recommends the following resources:

Avoid Repetition, MartinFlower.com (IEEE Software article)
Refactoring duplicated code, sourcemaking.com
Beck Design Rules, MartinFowler.com
DRY (Don't Repeat Yourself) Principle, Wikipedia
The Cut-and-Paste Programming Software Development Anti-Pattern, sourcemaking.com
Code Smells / Duplicated Code, Jeff Atwood, codinghorror.com:

"Duplicated code is the bane of software development. Stamp out duplication whenever possible. You should always be on the lookout for more subtle cases of near-duplication, too. Don't Repeat Yourself!"

Reducing Coupling, MartinFlower.com (IEEE Software article):

"There are several ways to describe coupling, but it boils down to this: If changing one module in a program requires changing another module, then coupling exists. ... Duplication always implies coupling, because changing one piece of duplicate code implies changing the other."