Duplication · guardian/interactive-journey-2015

Duplication Overall

19% duplication:

5,026 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
974 duplicated lines

364 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 50 longest duplicates.

See data for all 364 duplicates...

Size	#	Folders	Files	Lines	Code
80	x 2	src/js/templates src/js/templates	mapBlockTemplate.html mapSeaBlockTemplate.html	226:305 (13%) 70:149 (19%)	view
19	x 2	src/js/templates src/js/templates	mapBlockTemplate.html mapSeaBlockTemplate.html	340:358 (3%) 184:202 (4%)	view
19	x 2	src src/embed	boot.js boot.js	1:28 (100%) 1:28 (100%)	view
13	x 2	src/js/templates src/js/templates	mapBlockTemplate.html mapSeaBlockTemplate.html	360:372 (2%) 204:216 (3%)	view
11	x 2	src/js/templates src/js/templates	mapBlockTemplate.html mapSeaBlockTemplate.html	307:317 (1%) 151:161 (2%)	view
10	x 2	src/js/templates src/js/templates	mapBlockTemplate.html mapBlockTemplate.html	643:656 (1%) 660:673 (1%)	view
10	x 2	src/js/templates src/js/templates	headerBlockTemplate.html headerBlockTemplate.html	7:25 (29%) 40:57 (29%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	349:357 (<1%) 386:394 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	349:357 (<1%) 441:449 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	349:357 (<1%) 520:528 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	349:357 (<1%) 581:589 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	349:357 (<1%) 643:651 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	349:357 (<1%) 732:740 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	349:357 (<1%) 793:801 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	349:357 (<1%) 908:916 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	359:367 (<1%) 404:412 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	359:367 (<1%) 431:439 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	359:367 (<1%) 554:562 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	359:367 (<1%) 608:616 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	359:367 (<1%) 662:670 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	359:367 (<1%) 751:759 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	359:367 (<1%) 812:820 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	359:367 (<1%) 927:935 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	386:394 (<1%) 441:449 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	386:394 (<1%) 520:528 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	386:394 (<1%) 581:589 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	386:394 (<1%) 643:651 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	386:394 (<1%) 732:740 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	386:394 (<1%) 793:801 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	386:394 (<1%) 908:916 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	404:412 (<1%) 431:439 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	404:412 (<1%) 554:562 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	404:412 (<1%) 608:616 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	404:412 (<1%) 662:670 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	404:412 (<1%) 751:759 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	404:412 (<1%) 812:820 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	404:412 (<1%) 927:935 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	431:439 (<1%) 554:562 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	431:439 (<1%) 608:616 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	431:439 (<1%) 662:670 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	431:439 (<1%) 751:759 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	431:439 (<1%) 812:820 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	431:439 (<1%) 927:935 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	441:449 (<1%) 520:528 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	441:449 (<1%) 581:589 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	441:449 (<1%) 643:651 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	441:449 (<1%) 732:740 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	441:449 (<1%) 793:801 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	441:449 (<1%) 908:916 (<1%)	view
9	x 2	src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	520:528 (<1%) 581:589 (<1%)	view

Most Frequent Duplicates

The list of 17 most frequently found duplicates.

Size	#	Folders	Files	Lines	Code
6	x 24	src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates ...	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html ...	349:354 (<1%) 359:364 (<1%) 386:391 (<1%) 404:409 (<1%) 431:436 (<1%) 441:446 (<1%) 520:525 (<1%) 545:550 (<1%) 554:559 (<1%) 581:586 (<1%) ...	view
6	x 18	src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates ...	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html ...	350:355 (<1%) 360:365 (<1%) 387:392 (<1%) 405:410 (<1%) 432:437 (<1%) 442:447 (<1%) 521:526 (<1%) 555:560 (<1%) 582:587 (<1%) 609:614 (<1%) ...	view
6	x 9	src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	342:347 (<1%) 397:402 (<1%) 452:457 (<1%) 538:543 (<1%) 592:597 (<1%) 636:641 (<1%) 769:774 (<1%) 823:828 (<1%) 901:906 (<1%)	view
6	x 9	src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	341:346 (<1%) 396:401 (<1%) 451:456 (<1%) 537:542 (<1%) 591:596 (<1%) 635:640 (<1%) 768:773 (<1%) 822:827 (<1%) 900:905 (<1%)	view
6	x 9	src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	352:357 (<1%) 389:394 (<1%) 444:449 (<1%) 523:528 (<1%) 584:589 (<1%) 646:651 (<1%) 735:740 (<1%) 796:801 (<1%) 911:916 (<1%)	view
6	x 9	src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	361:366 (<1%) 406:411 (<1%) 433:438 (<1%) 556:561 (<1%) 610:615 (<1%) 664:669 (<1%) 753:758 (<1%) 814:819 (<1%) 929:934 (<1%)	view
6	x 9	src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	362:367 (<1%) 407:412 (<1%) 434:439 (<1%) 557:562 (<1%) 611:616 (<1%) 665:670 (<1%) 754:759 (<1%) 815:820 (<1%) 930:935 (<1%)	view
6	x 9	src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	351:356 (<1%) 388:393 (<1%) 443:448 (<1%) 522:527 (<1%) 583:588 (<1%) 645:650 (<1%) 734:739 (<1%) 795:800 (<1%) 910:915 (<1%)	view
6	x 6	src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	547:552 (<1%) 601:606 (<1%) 655:660 (<1%) 744:749 (<1%) 805:810 (<1%) 920:925 (<1%)	view
6	x 6	src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	546:551 (<1%) 600:605 (<1%) 654:659 (<1%) 743:748 (<1%) 804:809 (<1%) 919:924 (<1%)	view
6	x 5	src/js/templates src/js/templates src/js/templates src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapSeaBlockTemplate.html mapBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	310:315 (<1%) 163:168 (1%) 319:324 (1%) 496:501 (<1%) 708:713 (<1%)	view
6	x 4	src/js/templates src/js/templates src/js/templates src/js/templates	mapBlockTemplate.html mapSeaBlockTemplate.html mapSeaBlockTemplate.html mapBlockTemplate.html	385:390 (1%) 229:234 (1%) 239:244 (1%) 395:400 (1%)	view
6	x 3	src/js/templates src/js/templates src/js/templates	mapBlockTemplate.html mapBlockTemplate.html mapBlockTemplate.html	453:459 (1%) 511:517 (1%) 569:575 (1%)	view
6	x 3	src/js/templates src/js/templates src/js/templates	mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html mapHeaderBlockTemplate.html	334:339 (<1%) 530:535 (<1%) 761:766 (<1%)	view
6	x 3	src/js/templates src/js/templates src/js/templates	mapBlockTemplate.html mapBlockTemplate.html mapBlockTemplate.html	454:460 (1%) 512:518 (1%) 570:576 (1%)	view
6	x 3	src/js/templates src/js/templates src/js/templates	mapBlockTemplate.html mapSeaBlockTemplate.html mapBlockTemplate.html	208:214 (1%) 431:438 (1%) 632:639 (1%)	view
6	x 3	src/js/templates src/js/templates src/js/templates	mapBlockTemplate.html mapBlockTemplate.html mapBlockTemplate.html	462:468 (1%) 487:493 (1%) 554:560 (1%)	view

Duplicated Units

The list of top 3 duplicated units.

See data for all 3 unit duplicates...

Size	#	Folders	Files	Lines	Code
6	x 2	src src/embed	boot.js boot.js	4:11 4:11	view
19	x 2	src src/embed	boot.js boot.js	1:28 1:28	view
6	x 2	src src/embed	boot.js boot.js	14:26 14:26	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."