facebook / fbjs
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
  • 4% duplication:
    • 5,184 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
    • 250 duplicated lines
  • 7 duplicates
system4% (250 lines)
Duplication per Extension
js4% (250 lines)
Duplication per Component (primary)
fbjs-eslint-utils91% (91 lines)
eslint-config-fbjs15% (72 lines)
fbjs/src1% (54 lines)
eslint-config-fbjs/utils100% (19 lines)
fbjs-scripts/gulp9% (14 lines)
eslint-config-fbjs-opensource0% (0 lines)
signedsource0% (0 lines)
babel-preset-fbjs/plugins0% (0 lines)
babel-preset-fbjs0% (0 lines)
eslint-config-fb-strict0% (0 lines)
eslint-config-fbjs/scripts0% (0 lines)
fbjs0% (0 lines)
fbjs/flow0% (0 lines)
fbjs-scripts/babel0% (0 lines)
fbjs-scripts/node0% (0 lines)
fbjs-scripts/jest0% (0 lines)
fbjs-css-vars0% (0 lines)

Duplication Between Components (50+ lines)

G eslint-config-fbjs eslint-config-fbjs fbjs-eslint-utils fbjs-eslint-utils eslint-config-fbjs--fbjs-eslint-utils 144

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Longest Duplicates
The list of 7 longest duplicates.
See data for all 7 duplicates...
Size#FoldersFilesLinesCode
72 x 2 packages/eslint-config-fbjs
packages/fbjs-eslint-utils
14:102 (88%)
14:102 (98%)
view
19 x 2 packages/eslint-config-fbjs/utils
packages/fbjs-eslint-utils
8:37 (100%)
8:37 (100%)
view
8 x 2 packages/fbjs/src/functional
packages/fbjs/src/functional
19:26 (53%)
19:26 (53%)
view
7 x 2 packages/fbjs-scripts/gulp
packages/fbjs-scripts/gulp
31:39 (14%)
15:23 (38%)
view
7 x 2 packages/fbjs/src/unicode
packages/fbjs/src/unicode
83:89 (7%)
125:131 (7%)
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6 x 2 packages/fbjs/src/struct
packages/fbjs/src/struct
191:201 (3%)
218:228 (3%)
view
6 x 2 packages/fbjs/src/functional
packages/fbjs/src/functional
35:40 (46%)
35:40 (46%)
view
Duplicated Units
The list of top 1 duplicated units.
See data for all 1 unit duplicate
Size#FoldersFilesLinesCode
17 x 2 packages/fbjs-eslint-utils
packages/eslint-config-fbjs/utils
14:35 
14:35 
view