Duplication · guardian/how-much-do-they-earn-quiz

Duplication Overall

11% duplication:

10,395 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
1,146 duplicated lines

48 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 48 longest duplicates.

See data for all 48 duplicates...

Size	#	Folders	Files	Lines	Code
255	x 2	src/js src/js	embed.js main.js	189:579 (67%) 183:575 (69%)	view
89	x 2	src/js src/js	embed.js main.js	13:181 (23%) 11:179 (24%)	view
26	x 2	src/js src/js	embed.js slider_style.js	347:385 (6%) 388:426 (6%)	view
26	x 2	src/js src/js	main.js slider_style.js	343:381 (7%) 388:426 (6%)	view
24	x 2	harness/app-assets/templates/assets/js/components harness/app-assets/templates/assets/js/components	iscroll.js iscroll.js	1531:1554 (1%) 1669:1692 (1%)	view
23	x 2	src/js src/js	main.js slider_style.js	177:215 (6%) 249:289 (6%)	view
21	x 2	src/js src/js	embed.js slider_style.js	189:221 (5%) 257:289 (5%)	view
20	x 2	src/js src/js	embed.js main.js	596:631 (5%) 575:610 (5%)	view
17	x 2	src/js/text src/js/text	embed.html main.html	1:28 (100%) 1:30 (100%)	view
16	x 2	src/js src/js	embed.js slider_style.js	505:524 (4%) 521:540 (4%)	view
16	x 2	src/js src/js	embed.js slider_style.js	603:631 (4%) 600:628 (4%)	view
16	x 2	src/js src/js	main.js slider_style.js	501:520 (4%) 521:540 (4%)	view
16	x 2	src/js src/js	main.js slider_style.js	582:610 (4%) 600:628 (4%)	view
15	x 2	src/js src/js	embed.js slider_style.js	146:174 (3%) 204:232 (4%)	view
15	x 2	src/js src/js	embed.js slider_style.js	223:244 (3%) 293:307 (4%)	view
15	x 2	src/js src/js	embed.js slider_style.js	389:408 (3%) 428:447 (4%)	view
15	x 2	src/js src/js	main.js slider_style.js	144:172 (4%) 204:232 (4%)	view
15	x 2	src/js src/js	main.js slider_style.js	219:240 (4%) 293:307 (4%)	view
15	x 2	src/js src/js	main.js slider_style.js	385:404 (4%) 428:447 (4%)	view
14	x 2	src/css src/css	quiz.scss quiz.scss	393:406 (3%) 409:422 (3%)	view
13	x 2	src/js src/js	embed.js slider_style.js	246:264 (3%) 316:334 (3%)	view
13	x 2	src/js src/js	main.js slider_style.js	7:26 (3%) 8:27 (3%)	view
13	x 2	src/js src/js	main.js slider_style.js	242:260 (3%) 316:334 (3%)	view
11	x 2	src/js src/js	embed.js slider_style.js	13:28 (2%) 12:27 (2%)	view
11	x 2	src/js src/js	embed.js slider_style.js	95:113 (2%) 154:172 (2%)	view
11	x 2	src/js src/js	embed.js slider_style.js	462:473 (2%) 481:492 (2%)	view
11	x 2	src/js src/js	main.js slider_style.js	93:111 (3%) 154:172 (2%)	view
11	x 2	src/js src/js	main.js slider_style.js	458:469 (3%) 481:492 (2%)	view
10	x 2	src/js src/js	slider_style.js slider_style.js	59:77 (2%) 87:105 (2%)	view
8	x 2	src/js src/js	embed.js slider_style.js	526:533 (2%) 542:549 (2%)	view
8	x 2	src/js src/js	embed.js slider_style.js	556:563 (2%) 572:579 (2%)	view
8	x 2	src/js src/js	main.js slider_style.js	522:529 (2%) 542:549 (2%)	view
8	x 2	src/js src/js	main.js slider_style.js	552:559 (2%) 572:579 (2%)	view
8	x 2	src/css src/css	embed.scss main.scss	1:8 (100%) 1:8 (100%)	view
7	x 2	src/js src/js	embed.js slider_style.js	316:331 (1%) 373:388 (1%)	view
7	x 2	src/js src/js	embed.js slider_style.js	535:543 (1%) 551:559 (1%)	view
7	x 2	src/js src/js	embed.js slider_style.js	547:554 (1%) 563:570 (1%)	view
7	x 2	src/js src/js	embed.js slider_style.js	565:573 (1%) 581:589 (1%)	view
7	x 2	src/js src/js	main.js slider_style.js	312:327 (1%) 373:388 (1%)	view
7	x 2	src/js src/js	main.js slider_style.js	531:539 (1%) 551:559 (1%)	view
7	x 2	src/js src/js	main.js slider_style.js	543:550 (1%) 563:570 (1%)	view
7	x 2	src/js src/js	main.js slider_style.js	561:569 (1%) 581:589 (1%)	view
6	x 2	harness/app-assets/templates/assets/js/components harness/app-assets/templates/assets/js/components	iscroll.js iscroll.js	932:937 (<1%) 949:954 (<1%)	view
6	x 2	src/js src/js	config.js config.js	102:107 (2%) 187:192 (2%)	view
6	x 2	harness/app-assets/templates/assets/js/modules harness/app-assets/templates/assets/js/modules	comments.js comments.js	132:141 (3%) 163:172 (3%)	view
6	x 2	harness/app-assets/templates/assets/js harness/app-assets/templates/assets/js	cricket.js liveblog.js	8:14 (31%) 6:12 (40%)	view
6	x 2	harness/app-assets/templates/assets/js harness/app-assets/templates/assets/js	cricket.js football.js	8:14 (31%) 8:14 (31%)	view
6	x 2	harness/app-assets/templates/assets/js harness/app-assets/templates/assets/js	football.js liveblog.js	8:14 (31%) 6:12 (40%)	view

Most Frequent Duplicates

The list of 50 most frequently found duplicates.

Size	#	Folders	Files	Lines	Code
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	154:164 (1%) 212:222 (1%) 152:162 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	513:521 (1%) 529:537 (1%) 509:517 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	99:109 (1%) 158:168 (1%) 97:107 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	212:221 (1%) 280:289 (1%) 206:215 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	392:397 (1%) 431:436 (1%) 388:393 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	358:363 (1%) 399:404 (1%) 354:359 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	605:611 (1%) 602:608 (1%) 584:590 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	202:211 (1%) 270:279 (1%) 196:205 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	510:518 (1%) 526:534 (1%) 506:514 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	567:573 (1%) 583:589 (1%) 563:569 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	528:533 (1%) 544:549 (1%) 524:529 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	468:473 (1%) 487:492 (1%) 464:469 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	518:524 (1%) 534:540 (1%) 514:520 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	548:554 (1%) 564:570 (1%) 544:550 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	465:470 (1%) 484:489 (1%) 461:466 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	619:631 (1%) 616:628 (1%) 598:610 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	191:198 (1%) 259:266 (1%) 185:192 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	196:202 (1%) 264:270 (1%) 190:196 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	254:261 (1%) 324:331 (1%) 250:257 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	613:623 (1%) 610:620 (1%) 592:602 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	226:234 (1%) 295:300 (1%) 222:230 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	162:172 (1%) 220:230 (1%) 160:170 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	362:369 (1%) 403:410 (1%) 358:365 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	231:238 (1%) 298:303 (1%) 227:234 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	400:408 (1%) 439:447 (1%) 396:404 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	526:531 (1%) 542:547 (1%) 522:527 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	556:561 (1%) 572:577 (1%) 552:557 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	506:511 (1%) 522:527 (1%) 502:507 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	13:19 (1%) 12:18 (1%) 11:17 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	367:375 (1%) 408:416 (1%) 363:371 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	509:517 (1%) 525:533 (1%) 505:513 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	361:368 (1%) 402:409 (1%) 357:364 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	164:174 (1%) 222:232 (1%) 162:172 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	97:105 (1%) 156:164 (1%) 95:103 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	189:197 (1%) 257:265 (1%) 183:191 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	205:215 (1%) 273:283 (1%) 199:209 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	234:241 (1%) 300:305 (1%) 230:237 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	353:358 (1%) 394:399 (1%) 349:354 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	507:512 (1%) 523:528 (1%) 503:508 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	617:629 (1%) 614:626 (1%) 596:608 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	198:204 (1%) 266:272 (1%) 192:198 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	15:22 (1%) 14:21 (1%) 13:20 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	207:217 (1%) 275:285 (1%) 201:211 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	399:407 (1%) 438:446 (1%) 395:403 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	517:523 (1%) 533:539 (1%) 513:519 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	257:264 (1%) 327:334 (1%) 253:260 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	197:203 (1%) 265:271 (1%) 191:197 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	508:513 (1%) 524:529 (1%) 504:509 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	464:469 (1%) 483:488 (1%) 460:465 (1%)	view
6	x 3	src/js src/js src/js	embed.js slider_style.js main.js	247:255 (1%) 317:325 (1%) 243:251 (1%)	view

Duplicated Units

The list of top 13 duplicated units.

See data for all 13 unit duplicates...

Size	#	Folders	Files	Lines	Code
165	x 2	src/js src/js	embed.js main.js	349:579 345:575	view
20	x 2	src/js src/js	embed.js main.js	287:331 283:327	view
19	x 2	src/js src/js	embed.js main.js	40:80 38:78	view
18	x 2	src/js src/js	embed.js main.js	217:247 211:243	view
17	x 3	src/js src/js src/js	embed.js main.js slider_style.js	191:215 185:209 259:283	view
16	x 2	src/js src/js	embed.js main.js	531:553 527:549	view
23	x 2	src/js src/js	embed.js main.js	113:154 111:152	view
11	x 3	src/js src/js src/js	embed.js main.js slider_style.js	611:632 590:611 608:629	view
10	x 2	src/js src/js	embed.js main.js	129:146 127:144	view
9	x 2	src/js src/js	embed.js main.js	257:274 253:270	view
9	x 2	src/js src/js	embed.js main.js	333:347 329:343	view
13	x 2	src/js src/js	embed.js main.js	82:99 80:97	view
6	x 2	src/js src/js	embed.js main.js	276:285 272:281	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."