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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 enforce concise object methods and properties. * @author Jamund Ferguson */ "use strict"; const OPTIONS = { always: "always", never: "never", methods: "methods", properties: "properties", consistent: "consistent", consistentAsNeeded: "consistent-as-needed" }; //------------------------------------------------------------------------------ // Requirements //------------------------------------------------------------------------------ const astUtils = require("./utils/ast-utils"); //------------------------------------------------------------------------------ // Rule Definition //------------------------------------------------------------------------------ module.exports = { meta: { type: "suggestion", docs: { description: "require or disallow method and property shorthand syntax for object literals", category: "ECMAScript 6", recommended: false, url: "https://eslint.org/docs/rules/object-shorthand" }, fixable: "code", schema: { anyOf: [ { type: "array", items: [ { enum: ["always", "methods", "properties", "never", "consistent", "consistent-as-needed"] } ], minItems: 0, maxItems: 1 }, { type: "array", items: [ { enum: ["always", "methods", "properties"] }, { type: "object", properties: { avoidQuotes: { type: "boolean" } }, additionalProperties: false } ], minItems: 0, maxItems: 2 }, { type: "array", items: [ { enum: ["always", "methods"] }, { type: "object", properties: { ignoreConstructors: { type: "boolean" }, avoidQuotes: { type: "boolean" }, avoidExplicitReturnArrows: { type: "boolean" } }, additionalProperties: false } ], minItems: 0, maxItems: 2 } ] } }, create(context) { const APPLY = context.options[0] || OPTIONS.always; const APPLY_TO_METHODS = APPLY === OPTIONS.methods || APPLY === OPTIONS.always; const APPLY_TO_PROPS = APPLY === OPTIONS.properties || APPLY === OPTIONS.always; const APPLY_NEVER = APPLY === OPTIONS.never; const APPLY_CONSISTENT = APPLY === OPTIONS.consistent; const APPLY_CONSISTENT_AS_NEEDED = APPLY === OPTIONS.consistentAsNeeded; const PARAMS = context.options[1] || {}; const IGNORE_CONSTRUCTORS = PARAMS.ignoreConstructors; const AVOID_QUOTES = PARAMS.avoidQuotes; const AVOID_EXPLICIT_RETURN_ARROWS = !!PARAMS.avoidExplicitReturnArrows; const sourceCode = context.getSourceCode(); //-------------------------------------------------------------------------- // Helpers //-------------------------------------------------------------------------- const CTOR_PREFIX_REGEX = /[^_$0-9]/u; /** * Determines if the first character of the name is a capital letter. * @param {string} name The name of the node to evaluate. * @returns {boolean} True if the first character of the property name is a capital letter, false if not. * @private */ function isConstructor(name) { const match = CTOR_PREFIX_REGEX.exec(name); // Not a constructor if name has no characters apart from '_', '$' and digits e.g. '_', '$$', '_8' if (!match) { return false; } const firstChar = name.charAt(match.index); return firstChar === firstChar.toUpperCase(); } /** * Determines if the property can have a shorthand form. * @param {ASTNode} property Property AST node * @returns {boolean} True if the property can have a shorthand form * @private * */ function canHaveShorthand(property) { return (property.kind !== "set" && property.kind !== "get" && property.type !== "SpreadElement" && property.type !== "SpreadProperty" && property.type !== "ExperimentalSpreadProperty"); } /** * Checks whether a node is a string literal. * @param {ASTNode} node - Any AST node. * @returns {boolean} `true` if it is a string literal. */ function isStringLiteral(node) { return node.type === "Literal" && typeof node.value === "string"; } /** * Determines if the property is a shorthand or not. * @param {ASTNode} property Property AST node * @returns {boolean} True if the property is considered shorthand, false if not. * @private * */ function isShorthand(property) { // property.method is true when `{a(){}}`. return (property.shorthand || property.method); } /** * Determines if the property's key and method or value are named equally. * @param {ASTNode} property Property AST node * @returns {boolean} True if the key and value are named equally, false if not. * @private * */ function isRedundant(property) { const value = property.value; if (value.type === "FunctionExpression") { return !value.id; // Only anonymous should be shorthand method. } if (value.type === "Identifier") { return astUtils.getStaticPropertyName(property) === value.name; } return false; } /** * Ensures that an object's properties are consistently shorthand, or not shorthand at all. * @param {ASTNode} node Property AST node * @param {boolean} checkRedundancy Whether to check longform redundancy * @returns {void} * */ function checkConsistency(node, checkRedundancy) { // We are excluding getters/setters and spread properties as they are considered neither longform nor shorthand. const properties = node.properties.filter(canHaveShorthand); // Do we still have properties left after filtering the getters and setters? if (properties.length > 0) { const shorthandProperties = properties.filter(isShorthand); /* * If we do not have an equal number of longform properties as * shorthand properties, we are using the annotations inconsistently */ if (shorthandProperties.length !== properties.length) { // We have at least 1 shorthand property if (shorthandProperties.length > 0) { context.report({ node, message: "Unexpected mix of shorthand and non-shorthand properties." }); } else if (checkRedundancy) { /* * If all properties of the object contain a method or value with a name matching it's key, * all the keys are redundant. */ const canAlwaysUseShorthand = properties.every(isRedundant); if (canAlwaysUseShorthand) { context.report({ node, message: "Expected shorthand for all properties." }); } } } } } /** * Fixes a FunctionExpression node by making it into a shorthand property. * @param {SourceCodeFixer} fixer The fixer object * @param {ASTNode} node A `Property` node that has a `FunctionExpression` or `ArrowFunctionExpression` as its value * @returns {Object} A fix for this node */ function makeFunctionShorthand(fixer, node) { const firstKeyToken = node.computed ? sourceCode.getFirstToken(node, astUtils.isOpeningBracketToken) : sourceCode.getFirstToken(node.key); const lastKeyToken = node.computed ? sourceCode.getFirstTokenBetween(node.key, node.value, astUtils.isClosingBracketToken) : sourceCode.getLastToken(node.key); const keyText = sourceCode.text.slice(firstKeyToken.range[0], lastKeyToken.range[1]); let keyPrefix = ""; // key: /* */ () => {} if (sourceCode.commentsExistBetween(lastKeyToken, node.value)) { return null; } if (node.value.async) { keyPrefix += "async "; } if (node.value.generator) { keyPrefix += "*"; } const fixRange = [firstKeyToken.range[0], node.range[1]]; const methodPrefix = keyPrefix + keyText; if (node.value.type === "FunctionExpression") { const functionToken = sourceCode.getTokens(node.value).find(token => token.type === "Keyword" && token.value === "function"); const tokenBeforeParams = node.value.generator ? sourceCode.getTokenAfter(functionToken) : functionToken; return fixer.replaceTextRange( fixRange, methodPrefix + sourceCode.text.slice(tokenBeforeParams.range[1], node.value.range[1]) ); } const arrowToken = sourceCode.getTokenBefore(node.value.body, astUtils.isArrowToken); const fnBody = sourceCode.text.slice(arrowToken.range[1], node.value.range[1]); let shouldAddParensAroundParameters = false; let tokenBeforeParams; if (node.value.params.length === 0) { tokenBeforeParams = sourceCode.getFirstToken(node.value, astUtils.isOpeningParenToken); } else { tokenBeforeParams = sourceCode.getTokenBefore(node.value.params[0]); } if (node.value.params.length === 1) { const hasParen = astUtils.isOpeningParenToken(tokenBeforeParams); const isTokenOutsideNode = tokenBeforeParams.range[0] < node.range[0]; shouldAddParensAroundParameters = !hasParen || isTokenOutsideNode; } const sliceStart = shouldAddParensAroundParameters ? node.value.params[0].range[0] : tokenBeforeParams.range[0]; const sliceEnd = sourceCode.getTokenBefore(arrowToken).range[1]; const oldParamText = sourceCode.text.slice(sliceStart, sliceEnd); const newParamText = shouldAddParensAroundParameters ? `(${oldParamText})` : oldParamText; return fixer.replaceTextRange( fixRange, methodPrefix + newParamText + fnBody ); } /** * Fixes a FunctionExpression node by making it into a longform property. * @param {SourceCodeFixer} fixer The fixer object * @param {ASTNode} node A `Property` node that has a `FunctionExpression` as its value * @returns {Object} A fix for this node */ function makeFunctionLongform(fixer, node) { const firstKeyToken = node.computed ? sourceCode.getTokens(node).find(token => token.value === "[") : sourceCode.getFirstToken(node.key); const lastKeyToken = node.computed ? sourceCode.getTokensBetween(node.key, node.value).find(token => token.value === "]") : sourceCode.getLastToken(node.key); const keyText = sourceCode.text.slice(firstKeyToken.range[0], lastKeyToken.range[1]); let functionHeader = "function"; if (node.value.async) { functionHeader = `async ${functionHeader}`; } if (node.value.generator) { functionHeader = `${functionHeader}*`; } return fixer.replaceTextRange([node.range[0], lastKeyToken.range[1]], `${keyText}: ${functionHeader}`); } /* * To determine whether a given arrow function has a lexical identifier (`this`, `arguments`, `super`, or `new.target`), * create a stack of functions that define these identifiers (i.e. all functions except arrow functions) as the AST is * traversed. Whenever a new function is encountered, create a new entry on the stack (corresponding to a different lexical * scope of `this`), and whenever a function is exited, pop that entry off the stack. When an arrow function is entered, * keep a reference to it on the current stack entry, and remove that reference when the arrow function is exited. * When a lexical identifier is encountered, mark all the arrow functions on the current stack entry by adding them * to an `arrowsWithLexicalIdentifiers` set. Any arrow function in that set will not be reported by this rule, * because converting it into a method would change the value of one of the lexical identifiers. */ const lexicalScopeStack = []; const arrowsWithLexicalIdentifiers = new WeakSet(); const argumentsIdentifiers = new WeakSet(); /** * Enters a function. This creates a new lexical identifier scope, so a new Set of arrow functions is pushed onto the stack. * Also, this marks all `arguments` identifiers so that they can be detected later. * @returns {void} */ function enterFunction() { lexicalScopeStack.unshift(new Set()); context.getScope().variables.filter(variable => variable.name === "arguments").forEach(variable => { variable.references.map(ref => ref.identifier).forEach(identifier => argumentsIdentifiers.add(identifier)); }); } /** * Exits a function. This pops the current set of arrow functions off the lexical scope stack. * @returns {void} */ function exitFunction() { lexicalScopeStack.shift(); } /** * Marks the current function as having a lexical keyword. This implies that all arrow functions * in the current lexical scope contain a reference to this lexical keyword. * @returns {void} */ function reportLexicalIdentifier() { lexicalScopeStack[0].forEach(arrowFunction => arrowsWithLexicalIdentifiers.add(arrowFunction)); } //-------------------------------------------------------------------------- // Public //-------------------------------------------------------------------------- return { Program: enterFunction, FunctionDeclaration: enterFunction, FunctionExpression: enterFunction, "Program:exit": exitFunction, "FunctionDeclaration:exit": exitFunction, "FunctionExpression:exit": exitFunction, ArrowFunctionExpression(node) { lexicalScopeStack[0].add(node); }, "ArrowFunctionExpression:exit"(node) { lexicalScopeStack[0].delete(node); }, ThisExpression: reportLexicalIdentifier, Super: reportLexicalIdentifier, MetaProperty(node) { if (node.meta.name === "new" && node.property.name === "target") { reportLexicalIdentifier(); } }, Identifier(node) { if (argumentsIdentifiers.has(node)) { reportLexicalIdentifier(); } }, ObjectExpression(node) { if (APPLY_CONSISTENT) { checkConsistency(node, false); } else if (APPLY_CONSISTENT_AS_NEEDED) { checkConsistency(node, true); } }, "Property:exit"(node) { const isConciseProperty = node.method || node.shorthand; // Ignore destructuring assignment if (node.parent.type === "ObjectPattern") { return; } // getters and setters are ignored if (node.kind === "get" || node.kind === "set") { return; } // only computed methods can fail the following checks if (node.computed && node.value.type !== "FunctionExpression" && node.value.type !== "ArrowFunctionExpression") { return; } //-------------------------------------------------------------- // Checks for property/method shorthand. if (isConciseProperty) { if (node.method && (APPLY_NEVER || AVOID_QUOTES && isStringLiteral(node.key))) { const message = APPLY_NEVER ? "Expected longform method syntax." : "Expected longform method syntax for string literal keys."; // { x() {} } should be written as { x: function() {} } context.report({ node, message, fix: fixer => makeFunctionLongform(fixer, node) }); } else if (APPLY_NEVER) { // { x } should be written as { x: x } context.report({ node, message: "Expected longform property syntax.", fix: fixer => fixer.insertTextAfter(node.key, `: ${node.key.name}`) }); } } else if (APPLY_TO_METHODS && !node.value.id && (node.value.type === "FunctionExpression" || node.value.type === "ArrowFunctionExpression")) { if (IGNORE_CONSTRUCTORS && node.key.type === "Identifier" && isConstructor(node.key.name)) { return; } if (AVOID_QUOTES && isStringLiteral(node.key)) { return; } // {[x]: function(){}} should be written as {[x]() {}} if (node.value.type === "FunctionExpression" || node.value.type === "ArrowFunctionExpression" && node.value.body.type === "BlockStatement" && AVOID_EXPLICIT_RETURN_ARROWS && !arrowsWithLexicalIdentifiers.has(node.value) ) { context.report({ node, message: "Expected method shorthand.", fix: fixer => makeFunctionShorthand(fixer, node) }); } } else if (node.value.type === "Identifier" && node.key.name === node.value.name && APPLY_TO_PROPS) { // {x: x} should be written as {x} context.report({ node, message: "Expected property shorthand.", fix(fixer) { return fixer.replaceText(node, node.value.name); } }); } else if (node.value.type === "Identifier" && node.key.type === "Literal" && node.key.value === node.value.name && APPLY_TO_PROPS) { if (AVOID_QUOTES) { return; } // {"x": x} should be written as {x} context.report({ node, message: "Expected property shorthand.", fix(fixer) { return fixer.replaceText(node, node.value.name); } }); } } }; } };