firebase / codelab-friendlychat-ios
Duplication

Places in code with 6 or more lines that are exactly the same.

Intro
  • 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...
Duplication Overall
  • 71% duplication:
    • 1,418 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
    • 1,017 duplicated lines
  • 62 duplicates
system71% (1,017 lines)
Duplication per Extension
m78% (559 lines)
swift69% (431 lines)
h34% (27 lines)
Duplication per Component (primary)
grow-ios-starter/objc-starter/FriendlyChatObjC83% (223 lines)
ios/objc/FriendlyChatObjC63% (214 lines)
grow-ios-starter/swift-starter/FriendlyChatSwift83% (182 lines)
ios/swift/FriendlyChatSwift56% (152 lines)
ios-starter/objc-starter/FriendlyChatObjC81% (149 lines)
ios-starter/swift-starter/FriendlyChatSwift71% (97 lines)
ios0% (0 lines)

Duplication Between Components (50+ lines)

G grow-ios-starter/objc-starter/FriendlyChatObjC grow-ios-starter/objc-starter/FriendlyChatObjC ios/objc/FriendlyChatObjC ios/objc/FriendlyChatObjC grow-ios-starter/objc-starter/FriendlyChatObjC--ios/objc/FriendlyChatObjC 410 ios-starter/objc-starter/FriendlyChatObjC ios-starter/objc-starter/FriendlyChatObjC grow-ios-starter/objc-starter/FriendlyChatObjC--ios-starter/objc-starter/FriendlyChatObjC 280 grow-ios-starter/swift-starter/FriendlyChatSwift grow-ios-starter/swift-starter/FriendlyChatSwift ios/swift/FriendlyChatSwift ios/swift/FriendlyChatSwift grow-ios-starter/swift-starter/FriendlyChatSwift--ios/swift/FriendlyChatSwift 294 ios-starter/swift-starter/FriendlyChatSwift ios-starter/swift-starter/FriendlyChatSwift grow-ios-starter/swift-starter/FriendlyChatSwift--ios-starter/swift-starter/FriendlyChatSwift 180 ios-starter/objc-starter/FriendlyChatObjC--ios/objc/FriendlyChatObjC 254 ios-starter/swift-starter/FriendlyChatSwift--ios/swift/FriendlyChatSwift 122

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Show more details on duplication between components...
Longest Duplicates
The list of 20 longest duplicates.
See data for all 62 duplicates...
Size#FoldersFilesLinesCode
45 x 2 grow-ios-starter/objc-starter/FriendlyChatObjC
ios/objc/FriendlyChatObjC
FCViewController.m
FCViewController.m
 122:182 (28%)
144:204 (24%)
 view
41 x 2 grow-ios-starter/swift-starter/FriendlyChatSwift
ios/swift/FriendlyChatSwift
FCViewController.swift
FCViewController.swift
 114:175 (26%)
137:198 (25%)
 view
30 x 2 ios-starter/objc-starter/FriendlyChatObjC
ios/objc/FriendlyChatObjC
FCViewController.m
FCViewController.m
 20:68 (29%)
20:68 (16%)
 view
27 x 2 grow-ios-starter/swift-starter/FriendlyChatSwift
ios/swift/FriendlyChatSwift
FCViewController.swift
FCViewController.swift
 221:257 (17%)
240:276 (16%)
 view
23 x 2 grow-ios-starter/objc-starter/FriendlyChatObjC
ios/objc/FriendlyChatObjC
FCViewController.m
FCViewController.m
 187:219 (14%)
209:241 (12%)
 view
23 x 2 grow-ios-starter/objc-starter/FriendlyChatObjC
ios-starter/objc-starter/FriendlyChatObjC
FCViewController.m
FCViewController.m
 81:128 (14%)
77:124 (22%)
 view
22 x 2 grow-ios-starter/objc-starter/FriendlyChatObjC
ios/objc/FriendlyChatObjC
FCViewController.m
FCViewController.m
 39:71 (13%)
43:75 (11%)
 view
21 x 2 grow-ios-starter/objc-starter/FriendlyChatObjC
ios/objc/FriendlyChatObjC
AppDelegate.m
AppDelegate.m
 22:47 (58%)
39:64 (24%)
 view
19 x 2 grow-ios-starter/objc-starter/FriendlyChatObjC
ios-starter/objc-starter/FriendlyChatObjC
AppDelegate.m
AppDelegate.m
 19:43 (52%)
19:43 (73%)
 view
18 x 2 ios-starter/objc-starter/FriendlyChatObjC
ios/objc/FriendlyChatObjC
FCViewController.m
FCViewController.m
 141:163 (17%)
214:237 (9%)
 view
18 x 2 grow-ios-starter/objc-starter/FriendlyChatObjC
ios-starter/objc-starter/FriendlyChatObjC
FCViewController.m
FCViewController.m
 39:64 (11%)
43:68 (17%)
 view
18 x 2 grow-ios-starter/objc-starter/FriendlyChatObjC
ios/objc/FriendlyChatObjC
SignInViewController.m
SignInViewController.m
 21:44 (66%)
21:44 (94%)
 view
18 x 2 grow-ios-starter/objc-starter/FriendlyChatObjC
ios-starter/objc-starter/FriendlyChatObjC
FCViewController.m
FCViewController.m
 192:215 (11%)
141:163 (17%)
 view
17 x 2 ios-starter/objc-starter/FriendlyChatObjC
ios/objc/FriendlyChatObjC
AppDelegate.m
AppDelegate.m
 22:43 (65%)
39:60 (19%)
 view
16 x 2 grow-ios-starter/swift-starter/FriendlyChatSwift
ios-starter/swift-starter/FriendlyChatSwift
FCViewController.swift
FCViewController.swift
 181:204 (10%)
127:150 (17%)
 view
16 x 2 grow-ios-starter/objc-starter/FriendlyChatObjC
ios/objc/FriendlyChatObjC
FCViewController.m
FCViewController.m
 229:244 (10%)
251:266 (8%)
 view
15 x 2 grow-ios-starter/swift-starter/FriendlyChatSwift
ios-starter/swift-starter/FriendlyChatSwift
FCViewController.swift
FCViewController.swift
 39:60 (9%)
40:61 (16%)
 view
15 x 2 grow-ios-starter/swift-starter/FriendlyChatSwift
ios/swift/FriendlyChatSwift
FCViewController.swift
FCViewController.swift
 203:219 (9%)
222:238 (9%)
 view
15 x 2 grow-ios-starter/swift-starter/FriendlyChatSwift
ios/swift/FriendlyChatSwift
SignInViewController.swift
SignInViewController.swift
 22:41 (100%)
22:42 (100%)
 view
14 x 2 grow-ios-starter/swift-starter/FriendlyChatSwift
ios/swift/FriendlyChatSwift
FCViewController.swift
FCViewController.swift
 42:61 (9%)
43:62 (8%)
 view
Duplicated Units
The list of top 4 duplicated units.
See data for all 4 unit duplicates...
Size#FoldersFilesLinesCode
31 x 2 grow-ios-starter/swift-starter/FriendlyChatSwift
ios/swift/FriendlyChatSwift
FCViewController.swift
FCViewController.swift
 122:155 
145:178 
 view
8 x 3 grow-ios-starter/swift-starter/FriendlyChatSwift
ios-starter/swift-starter/FriendlyChatSwift
ios/swift/FriendlyChatSwift
FCViewController.swift
FCViewController.swift
FCViewController.swift
 251:259 
171:179 
270:278 
 view
7 x 2 grow-ios-starter/swift-starter/FriendlyChatSwift
ios/swift/FriendlyChatSwift
FCViewController.swift
FCViewController.swift
 66:74 
67:75 
 view
7 x 3 grow-ios-starter/swift-starter/FriendlyChatSwift
ios-starter/swift-starter/FriendlyChatSwift
ios/swift/FriendlyChatSwift
FCViewController.swift
FCViewController.swift
FCViewController.swift
 158:165 
113:120 
181:188 
 view