Duplication · guardian/australian-frontier-massacres

Duplication Overall

1% duplication:

12,735 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
242 duplicated lines

18 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 18 longest duplicates.

See data for all 18 duplicates...

Size	#	Folders	Files	Lines	Code
14	x 2	src/css src/css	casualties.scss casualties.scss	41:57 (15%) 81:97 (15%)	view
9	x 2	ROOT ROOT	gulpfile.babel.js gulpfile.babel.js	207:215 (4%) 218:226 (4%)	view
9	x 2	src/js/modules/leaflet/src/layer src/js/modules/leaflet/src/layer	Popup.js Tooltip.js	421:434 (3%) 315:328 (4%)	view
8	x 2	ROOT ROOT	gulpfile.babel.js gulpfile.babel.js	258:267 (3%) 275:284 (3%)	view
8	x 2	src/js/modules src/js/modules	frontier.js frontier.js	1214:1231 (1%) 1283:1300 (1%)	view
7	x 2	src/css src/css	filter.scss filter.scss	97:103 (3%) 111:117 (3%)	view
7	x 2	src/css src/css	modal.scss modal.scss	79:85 (3%) 182:188 (3%)	view
7	x 2	src/css src/css	results.scss results.scss	134:140 (1%) 178:184 (1%)	view
7	x 2	src/templates src/templates	main.html template.html	5:21 (36%) 19:35 (2%)	view
6	x 2	src/css src/css	casualties.scss casualties.scss	60:65 (6%) 100:105 (6%)	view
6	x 2	src/css src/css	search.scss search.scss	29:36 (7%) 45:52 (7%)	view
6	x 2	src/js/modules/leaflet/src/map/handler src/js/modules/leaflet/src/map/handler	Map.BoxZoom.js Map.BoxZoom.js	75:80 (6%) 113:118 (6%)	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	topfive.scss topfive.scss	45:50 (7%) 60:65 (7%)	view
6	x 2	src/css src/css	topfive.scss topfive.scss	45:50 (7%) 75:80 (7%)	view
6	x 2	src/css src/css	topfive.scss topfive.scss	60:65 (7%) 75:80 (7%)	view
6	x 2	src/js/modules/leaflet/src/layer src/js/modules/leaflet/src/layer	Layer.js LayerGroup.js	208:223 (5%) 110:124 (9%)	view
6	x 2	src/js/modules/leaflet/src/layer/vector src/js/modules/leaflet/src/layer/vector	Polygon.js Polyline.js	131:138 (7%) 240:247 (3%)	view

Most Frequent Duplicates

The list of 1 most frequently found duplicates.

Size	#	Folders	Files	Lines	Code
6	x 3	src/css src/css src/css	topfive.scss topfive.scss topfive.scss	45:50 (7%) 60:65 (7%) 75:80 (7%)	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."