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Date
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utils
[ DIR ]
drwxr-xr-x
2024-07-10 10:55
accessor-pairs.js
12.41
KB
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2019-09-14 01:35
array-bracket-newline.js
9.43
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2019-09-14 01:35
array-bracket-spacing.js
8.85
KB
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2019-09-14 01:35
array-callback-return.js
7.98
KB
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2019-09-14 01:35
array-element-newline.js
9.22
KB
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2023-12-15 20:21
arrow-body-style.js
10.27
KB
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2019-09-14 01:35
arrow-parens.js
6.38
KB
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2019-09-14 01:35
arrow-spacing.js
5.08
KB
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2019-09-14 01:35
block-scoped-var.js
3.58
KB
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2019-09-14 01:35
block-spacing.js
4.99
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2019-09-14 01:35
brace-style.js
7.71
KB
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2019-09-14 01:35
callback-return.js
6.33
KB
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2019-09-14 01:35
camelcase.js
8.29
KB
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2019-09-14 01:35
capitalized-comments.js
10.68
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2023-12-15 20:21
class-methods-use-this.js
3.81
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2019-09-14 01:35
comma-dangle.js
11.75
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2019-09-14 01:35
comma-spacing.js
6.53
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2019-09-14 01:35
comma-style.js
11.78
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2019-09-14 01:35
complexity.js
4.94
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2019-09-14 01:35
computed-property-spacing.js
7.17
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2019-09-14 01:35
consistent-return.js
6.59
KB
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2019-09-14 01:35
consistent-this.js
4.86
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2019-09-14 01:35
constructor-super.js
13.49
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2019-09-14 01:35
curly.js
16.24
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2019-09-14 01:35
default-case.js
2.76
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2019-09-14 01:35
default-param-last.js
1.5
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2019-09-14 01:35
dot-location.js
3.34
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2019-09-14 01:35
dot-notation.js
6.47
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2019-09-14 01:35
eol-last.js
3.79
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2019-09-14 01:35
eqeqeq.js
5.55
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2023-12-15 20:21
for-direction.js
4.27
KB
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2019-09-14 01:35
func-call-spacing.js
7.29
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2019-09-14 01:35
func-name-matching.js
9.84
KB
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2023-12-15 20:21
func-names.js
6.09
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2023-12-15 20:21
func-style.js
2.84
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2019-09-14 01:35
function-call-argument-newline.js
4.13
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2019-09-14 01:35
function-paren-newline.js
11.15
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2019-09-14 01:35
generator-star-spacing.js
6.98
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2019-09-14 01:35
getter-return.js
6.02
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2019-09-14 01:35
global-require.js
2.3
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2019-09-14 01:35
guard-for-in.js
2.3
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2019-09-14 01:35
handle-callback-err.js
2.92
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2019-09-14 01:35
id-blacklist.js
4.05
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2019-09-14 01:35
id-length.js
4.12
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2019-09-14 01:35
id-match.js
8.14
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2019-09-14 01:35
implicit-arrow-linebreak.js
2.79
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2019-09-14 01:35
indent-legacy.js
44.45
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2019-09-14 01:35
indent.js
68.68
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2019-09-14 01:35
index.js
16.34
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2019-09-14 01:35
init-declarations.js
4.37
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2019-09-14 01:35
jsx-quotes.js
2.89
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2019-09-14 01:35
key-spacing.js
24.82
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2019-09-14 01:35
keyword-spacing.js
21.2
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2019-09-14 01:35
line-comment-position.js
4.08
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2019-09-14 01:35
linebreak-style.js
3.17
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2019-09-14 01:35
lines-around-comment.js
15.54
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2019-09-14 01:35
lines-around-directive.js
7.58
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2019-09-14 01:35
lines-between-class-members.js
5.05
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2019-09-14 01:35
max-classes-per-file.js
1.73
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2019-09-14 01:35
max-depth.js
4.59
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2019-09-14 01:35
max-len.js
13.8
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2019-09-14 01:35
max-lines-per-function.js
6.89
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2019-09-14 01:35
max-lines.js
4.59
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2019-09-14 01:35
max-nested-callbacks.js
3.47
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2019-09-14 01:35
max-params.js
3.07
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2019-09-14 01:35
max-statements-per-line.js
7.31
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2019-09-14 01:35
max-statements.js
5.4
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2019-09-14 01:35
multiline-comment-style.js
14.42
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2019-09-14 01:35
multiline-ternary.js
3.42
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2019-09-14 01:35
new-cap.js
9.44
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2019-09-14 01:35
new-parens.js
3.14
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2019-09-14 01:35
newline-after-var.js
9.6
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2019-09-14 01:35
newline-before-return.js
7.89
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2019-09-14 01:35
newline-per-chained-call.js
3.56
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2019-09-14 01:35
no-alert.js
3.96
KB
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2019-09-14 01:35
no-array-constructor.js
1.36
KB
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2019-09-14 01:35
no-async-promise-executor.js
1.1
KB
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2019-09-14 01:35
no-await-in-loop.js
2.72
KB
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2019-09-14 01:35
no-bitwise.js
3.51
KB
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2019-09-14 01:35
no-buffer-constructor.js
1.31
KB
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2019-09-14 01:35
no-caller.js
1.17
KB
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2019-09-14 01:35
no-case-declarations.js
1.82
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2019-09-14 01:35
no-catch-shadow.js
2.44
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2019-09-14 01:35
no-class-assign.js
1.67
KB
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2019-09-14 01:35
no-compare-neg-zero.js
1.9
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2019-09-14 01:35
no-cond-assign.js
5.04
KB
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2019-09-14 01:35
no-confusing-arrow.js
2.55
KB
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2019-09-14 01:35
no-console.js
4.21
KB
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2019-09-14 01:35
no-const-assign.js
1.46
KB
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2019-09-14 01:35
no-constant-condition.js
8.48
KB
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2019-09-14 01:35
no-continue.js
875
B
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2019-09-14 01:35
no-control-regex.js
3.14
KB
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2019-09-14 01:35
no-debugger.js
947
B
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2019-09-14 01:35
no-delete-var.js
965
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2019-09-14 01:35
no-div-regex.js
1.42
KB
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2019-09-14 01:35
no-dupe-args.js
2.3
KB
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2019-09-14 01:35
no-dupe-class-members.js
3.58
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2019-09-14 01:35
no-dupe-keys.js
3.87
KB
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2019-09-14 01:35
no-duplicate-case.js
1.36
KB
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2019-09-14 01:35
no-duplicate-imports.js
4.43
KB
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2019-09-14 01:35
no-else-return.js
15.74
KB
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2019-09-14 01:35
no-empty-character-class.js
1.91
KB
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2019-09-14 01:35
no-empty-function.js
4.61
KB
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2019-09-14 01:35
no-empty-pattern.js
1.15
KB
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2019-09-14 01:35
no-empty.js
2.44
KB
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2019-09-14 01:35
no-eq-null.js
1.21
KB
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2019-09-14 01:35
no-eval.js
9.31
KB
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2019-09-14 01:35
no-ex-assign.js
1.37
KB
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2019-09-14 01:35
no-extend-native.js
6.95
KB
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2019-09-14 01:35
no-extra-bind.js
5.71
KB
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2019-09-14 01:35
no-extra-boolean-cast.js
6.52
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2019-09-14 01:35
no-extra-label.js
4.76
KB
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2019-09-14 01:35
no-extra-parens.js
39.11
KB
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2019-09-14 01:35
no-extra-semi.js
4.11
KB
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2019-09-14 01:35
no-fallthrough.js
4.78
KB
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2019-09-14 01:35
no-floating-decimal.js
2.33
KB
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2019-09-14 01:35
no-func-assign.js
1.96
KB
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2019-09-14 01:35
no-global-assign.js
2.76
KB
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2019-09-14 01:35
no-implicit-coercion.js
10.06
KB
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2019-09-14 01:35
no-implicit-globals.js
1.78
KB
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2019-09-14 01:35
no-implied-eval.js
5.99
KB
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2019-09-14 01:35
no-import-assign.js
6.92
KB
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2019-09-14 01:35
no-inline-comments.js
2.19
KB
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2019-09-14 01:35
no-inner-declarations.js
2.59
KB
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2019-09-14 01:35
no-invalid-regexp.js
4.01
KB
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2019-09-14 01:35
no-invalid-this.js
3.74
KB
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2019-09-14 01:35
no-irregular-whitespace.js
8.72
KB
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2019-09-14 01:35
no-iterator.js
1.08
KB
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2019-09-14 01:35
no-label-var.js
2.13
KB
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2019-09-14 01:35
no-labels.js
4.22
KB
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2019-09-14 01:35
no-lone-blocks.js
3.68
KB
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2019-09-14 01:35
no-lonely-if.js
3.62
KB
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2019-09-14 01:35
no-loop-func.js
6.16
KB
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2019-09-14 01:35
no-magic-numbers.js
5.8
KB
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2019-09-14 01:35
no-misleading-character-class.js
6.05
KB
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2019-09-14 01:35
no-mixed-operators.js
8.21
KB
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2019-09-14 01:35
no-mixed-requires.js
6.91
KB
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2019-09-14 01:35
no-mixed-spaces-and-tabs.js
4.54
KB
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2019-09-14 01:35
no-multi-assign.js
1.18
KB
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2019-09-14 01:35
no-multi-spaces.js
4.85
KB
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2019-09-14 01:35
no-multi-str.js
1.64
KB
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2019-09-14 01:35
no-multiple-empty-lines.js
5.75
KB
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2019-09-14 01:35
no-native-reassign.js
2.86
KB
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2019-09-14 01:35
no-negated-condition.js
2.68
KB
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2019-09-14 01:35
no-negated-in-lhs.js
1.08
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2019-09-14 01:35
no-nested-ternary.js
986
B
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2019-09-14 01:35
no-new-func.js
1.24
KB
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2019-09-14 01:35
no-new-object.js
923
B
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2019-09-14 01:35
no-new-require.js
960
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2019-09-14 01:35
no-new-symbol.js
1.27
KB
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2019-09-14 01:35
no-new-wrappers.js
1.05
KB
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2019-09-14 01:35
no-new.js
913
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2019-09-14 01:35
no-obj-calls.js
1.84
KB
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2019-09-14 01:35
no-octal-escape.js
1.42
KB
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2019-09-14 01:35
no-octal.js
886
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2019-09-14 01:35
no-param-reassign.js
6.8
KB
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2019-09-14 01:35
no-path-concat.js
1.44
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2019-09-14 01:35
no-plusplus.js
1.66
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2019-09-14 01:35
no-process-env.js
1.01
KB
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2019-09-14 01:35
no-process-exit.js
1.08
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2019-09-14 01:35
no-proto.js
1.07
KB
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2019-09-14 01:35
no-prototype-builtins.js
1.63
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2019-09-14 01:35
no-redeclare.js
5.6
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2019-09-14 01:35
no-regex-spaces.js
3.73
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2019-09-14 01:35
no-restricted-globals.js
3.76
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2019-09-14 01:35
no-restricted-imports.js
11.43
KB
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2023-12-15 20:21
no-restricted-modules.js
5.9
KB
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2023-12-15 20:21
no-restricted-properties.js
6.46
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2019-09-14 01:35
no-restricted-syntax.js
1.97
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2019-09-14 01:35
no-return-assign.js
2.49
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2019-09-14 01:35
no-return-await.js
3.73
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2019-09-14 01:35
no-script-url.js
1.05
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2019-09-14 01:35
no-self-assign.js
6.79
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2019-09-14 01:35
no-self-compare.js
1.72
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2019-09-14 01:35
no-sequences.js
3.94
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2019-09-14 01:35
no-shadow-restricted-names.js
2
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2019-09-14 01:35
no-shadow.js
6.81
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2019-09-14 01:35
no-spaced-func.js
2.34
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2019-09-14 01:35
no-sparse-arrays.js
1.07
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2019-09-14 01:35
no-sync.js
1.52
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2019-09-14 01:35
no-tabs.js
2.01
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2019-09-14 01:35
no-template-curly-in-string.js
1.04
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2019-09-14 01:35
no-ternary.js
793
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2019-09-14 01:35
no-this-before-super.js
9.95
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2019-09-14 01:35
no-throw-literal.js
1.26
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2019-09-14 01:35
no-trailing-spaces.js
6.13
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2019-09-14 01:35
no-undef-init.js
2.01
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2019-09-14 01:35
no-undef.js
2.24
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2019-09-14 01:35
no-undefined.js
2.07
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2019-09-14 01:35
no-underscore-dangle.js
7.44
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2019-09-14 01:35
no-unexpected-multiline.js
3.59
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2019-09-14 01:35
no-unmodified-loop-condition.js
11.65
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2019-09-14 01:35
no-unneeded-ternary.js
6.58
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2019-09-14 01:35
no-unreachable.js
6.29
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2019-09-14 01:35
no-unsafe-finally.js
3.87
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2019-09-14 01:35
no-unsafe-negation.js
2.36
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2019-09-14 01:35
no-unused-expressions.js
4.7
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2019-09-14 01:35
no-unused-labels.js
3.22
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2019-09-14 01:35
no-unused-vars.js
23.08
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2019-09-14 01:35
no-use-before-define.js
7.45
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2019-09-14 01:35
no-useless-call.js
2.78
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2019-09-14 01:35
no-useless-catch.js
1.55
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2019-09-14 01:35
no-useless-computed-key.js
3.19
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2019-09-14 01:35
no-useless-concat.js
3.16
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2019-09-14 01:35
no-useless-constructor.js
5.46
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2019-09-14 01:35
no-useless-escape.js
8.98
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2019-09-14 01:35
no-useless-rename.js
5.08
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2019-09-14 01:35
no-useless-return.js
11.77
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2019-09-14 01:35
no-var.js
12.13
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2019-09-14 01:35
no-void.js
1.03
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2019-09-14 01:35
no-warning-comments.js
5.4
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2019-09-14 01:35
no-whitespace-before-property.js
3.33
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2019-09-14 01:35
no-with.js
784
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2019-09-14 01:35
nonblock-statement-body-position.js
4.41
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2023-12-15 20:21
object-curly-newline.js
10.69
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2019-09-14 01:35
object-curly-spacing.js
11.27
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2019-09-14 01:35
object-property-newline.js
3.59
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2019-09-14 01:35
object-shorthand.js
20.66
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2019-09-14 01:35
one-var-declaration-per-line.js
2.74
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2019-09-14 01:35
one-var.js
21
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2019-09-14 01:35
operator-assignment.js
7.73
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Save
Rename
/** * @fileoverview Rule to check for max length on a line. * @author Matt DuVall <http://www.mattduvall.com> */ "use strict"; //------------------------------------------------------------------------------ // Constants //------------------------------------------------------------------------------ const OPTIONS_SCHEMA = { type: "object", properties: { code: { type: "integer", minimum: 0 }, comments: { type: "integer", minimum: 0 }, tabWidth: { type: "integer", minimum: 0 }, ignorePattern: { type: "string" }, ignoreComments: { type: "boolean" }, ignoreStrings: { type: "boolean" }, ignoreUrls: { type: "boolean" }, ignoreTemplateLiterals: { type: "boolean" }, ignoreRegExpLiterals: { type: "boolean" }, ignoreTrailingComments: { type: "boolean" } }, additionalProperties: false }; const OPTIONS_OR_INTEGER_SCHEMA = { anyOf: [ OPTIONS_SCHEMA, { type: "integer", minimum: 0 } ] }; //------------------------------------------------------------------------------ // Rule Definition //------------------------------------------------------------------------------ module.exports = { meta: { type: "layout", docs: { description: "enforce a maximum line length", category: "Stylistic Issues", recommended: false, url: "https://eslint.org/docs/rules/max-len" }, schema: [ OPTIONS_OR_INTEGER_SCHEMA, OPTIONS_OR_INTEGER_SCHEMA, OPTIONS_SCHEMA ], messages: { max: "This line has a length of {{lineLength}}. Maximum allowed is {{maxLength}}.", maxComment: "This line has a comment length of {{lineLength}}. Maximum allowed is {{maxCommentLength}}." } }, create(context) { /* * Inspired by http://tools.ietf.org/html/rfc3986#appendix-B, however: * - They're matching an entire string that we know is a URI * - We're matching part of a string where we think there *might* be a URL * - We're only concerned about URLs, as picking out any URI would cause * too many false positives * - We don't care about matching the entire URL, any small segment is fine */ const URL_REGEXP = /[^:/?#]:\/\/[^?#]/u; const sourceCode = context.getSourceCode(); /** * Computes the length of a line that may contain tabs. The width of each * tab will be the number of spaces to the next tab stop. * @param {string} line The line. * @param {int} tabWidth The width of each tab stop in spaces. * @returns {int} The computed line length. * @private */ function computeLineLength(line, tabWidth) { let extraCharacterCount = 0; line.replace(/\t/gu, (match, offset) => { const totalOffset = offset + extraCharacterCount, previousTabStopOffset = tabWidth ? totalOffset % tabWidth : 0, spaceCount = tabWidth - previousTabStopOffset; extraCharacterCount += spaceCount - 1; // -1 for the replaced tab }); return Array.from(line).length + extraCharacterCount; } // The options object must be the last option specified… const options = Object.assign({}, context.options[context.options.length - 1]); // …but max code length… if (typeof context.options[0] === "number") { options.code = context.options[0]; } // …and tabWidth can be optionally specified directly as integers. if (typeof context.options[1] === "number") { options.tabWidth = context.options[1]; } const maxLength = typeof options.code === "number" ? options.code : 80, tabWidth = typeof options.tabWidth === "number" ? options.tabWidth : 4, ignoreComments = !!options.ignoreComments, ignoreStrings = !!options.ignoreStrings, ignoreTemplateLiterals = !!options.ignoreTemplateLiterals, ignoreRegExpLiterals = !!options.ignoreRegExpLiterals, ignoreTrailingComments = !!options.ignoreTrailingComments || !!options.ignoreComments, ignoreUrls = !!options.ignoreUrls, maxCommentLength = options.comments; let ignorePattern = options.ignorePattern || null; if (ignorePattern) { ignorePattern = new RegExp(ignorePattern, "u"); } //-------------------------------------------------------------------------- // Helpers //-------------------------------------------------------------------------- /** * Tells if a given comment is trailing: it starts on the current line and * extends to or past the end of the current line. * @param {string} line The source line we want to check for a trailing comment on * @param {number} lineNumber The one-indexed line number for line * @param {ASTNode} comment The comment to inspect * @returns {boolean} If the comment is trailing on the given line */ function isTrailingComment(line, lineNumber, comment) { return comment && (comment.loc.start.line === lineNumber && lineNumber <= comment.loc.end.line) && (comment.loc.end.line > lineNumber || comment.loc.end.column === line.length); } /** * Tells if a comment encompasses the entire line. * @param {string} line The source line with a trailing comment * @param {number} lineNumber The one-indexed line number this is on * @param {ASTNode} comment The comment to remove * @returns {boolean} If the comment covers the entire line */ function isFullLineComment(line, lineNumber, comment) { const start = comment.loc.start, end = comment.loc.end, isFirstTokenOnLine = !line.slice(0, comment.loc.start.column).trim(); return comment && (start.line < lineNumber || (start.line === lineNumber && isFirstTokenOnLine)) && (end.line > lineNumber || (end.line === lineNumber && end.column === line.length)); } /** * Gets the line after the comment and any remaining trailing whitespace is * stripped. * @param {string} line The source line with a trailing comment * @param {ASTNode} comment The comment to remove * @returns {string} Line without comment and trailing whitepace */ function stripTrailingComment(line, comment) { // loc.column is zero-indexed return line.slice(0, comment.loc.start.column).replace(/\s+$/u, ""); } /** * Ensure that an array exists at [key] on `object`, and add `value` to it. * * @param {Object} object the object to mutate * @param {string} key the object's key * @param {*} value the value to add * @returns {void} * @private */ function ensureArrayAndPush(object, key, value) { if (!Array.isArray(object[key])) { object[key] = []; } object[key].push(value); } /** * Retrieves an array containing all strings (" or ') in the source code. * * @returns {ASTNode[]} An array of string nodes. */ function getAllStrings() { return sourceCode.ast.tokens.filter(token => (token.type === "String" || (token.type === "JSXText" && sourceCode.getNodeByRangeIndex(token.range[0] - 1).type === "JSXAttribute"))); } /** * Retrieves an array containing all template literals in the source code. * * @returns {ASTNode[]} An array of template literal nodes. */ function getAllTemplateLiterals() { return sourceCode.ast.tokens.filter(token => token.type === "Template"); } /** * Retrieves an array containing all RegExp literals in the source code. * * @returns {ASTNode[]} An array of RegExp literal nodes. */ function getAllRegExpLiterals() { return sourceCode.ast.tokens.filter(token => token.type === "RegularExpression"); } /** * A reducer to group an AST node by line number, both start and end. * * @param {Object} acc the accumulator * @param {ASTNode} node the AST node in question * @returns {Object} the modified accumulator * @private */ function groupByLineNumber(acc, node) { for (let i = node.loc.start.line; i <= node.loc.end.line; ++i) { ensureArrayAndPush(acc, i, node); } return acc; } /** * Check the program for max length * @param {ASTNode} node Node to examine * @returns {void} * @private */ function checkProgramForMaxLength(node) { // split (honors line-ending) const lines = sourceCode.lines, // list of comments to ignore comments = ignoreComments || maxCommentLength || ignoreTrailingComments ? sourceCode.getAllComments() : []; // we iterate over comments in parallel with the lines let commentsIndex = 0; const strings = getAllStrings(); const stringsByLine = strings.reduce(groupByLineNumber, {}); const templateLiterals = getAllTemplateLiterals(); const templateLiteralsByLine = templateLiterals.reduce(groupByLineNumber, {}); const regExpLiterals = getAllRegExpLiterals(); const regExpLiteralsByLine = regExpLiterals.reduce(groupByLineNumber, {}); lines.forEach((line, i) => { // i is zero-indexed, line numbers are one-indexed const lineNumber = i + 1; /* * if we're checking comment length; we need to know whether this * line is a comment */ let lineIsComment = false; let textToMeasure; /* * We can short-circuit the comment checks if we're already out of * comments to check. */ if (commentsIndex < comments.length) { let comment = null; // iterate over comments until we find one past the current line do { comment = comments[++commentsIndex]; } while (comment && comment.loc.start.line <= lineNumber); // and step back by one comment = comments[--commentsIndex]; if (isFullLineComment(line, lineNumber, comment)) { lineIsComment = true; textToMeasure = line; } else if (ignoreTrailingComments && isTrailingComment(line, lineNumber, comment)) { textToMeasure = stripTrailingComment(line, comment); // ignore multiple trailing comments in the same line let lastIndex = commentsIndex; while (isTrailingComment(textToMeasure, lineNumber, comments[--lastIndex])) { textToMeasure = stripTrailingComment(textToMeasure, comments[lastIndex]); } } else { textToMeasure = line; } } else { textToMeasure = line; } if (ignorePattern && ignorePattern.test(textToMeasure) || ignoreUrls && URL_REGEXP.test(textToMeasure) || ignoreStrings && stringsByLine[lineNumber] || ignoreTemplateLiterals && templateLiteralsByLine[lineNumber] || ignoreRegExpLiterals && regExpLiteralsByLine[lineNumber] ) { // ignore this line return; } const lineLength = computeLineLength(textToMeasure, tabWidth); const commentLengthApplies = lineIsComment && maxCommentLength; if (lineIsComment && ignoreComments) { return; } if (commentLengthApplies) { if (lineLength > maxCommentLength) { context.report({ node, loc: { line: lineNumber, column: 0 }, messageId: "maxComment", data: { lineLength, maxCommentLength } }); } } else if (lineLength > maxLength) { context.report({ node, loc: { line: lineNumber, column: 0 }, messageId: "max", data: { lineLength, maxLength } }); } }); } //-------------------------------------------------------------------------- // Public API //-------------------------------------------------------------------------- return { Program: checkProgramForMaxLength }; } };