Linux v69820.1blu.de 4.15.0 #1 SMP Mon Sep 30 15:36:27 MSK 2024 x86_64
Apache/2.4.58
Server IP : 195.90.215.149 & Your IP : 216.73.217.80
Domains :
Cant Read [ /etc/named.conf ]
User : www-data
Terminal
Auto Root
Create File
Create Folder
Localroot Suggester
Backdoor Destroyer
Readme
/
usr /
share /
nodejs /
eslint /
lib /
rules /
Delete
Unzip
Name
Size
Permission
Date
Action
utils
[ DIR ]
drwxr-xr-x
2024-07-10 10:55
accessor-pairs.js
12.41
KB
-rw-r--r--
2019-09-14 01:35
array-bracket-newline.js
9.43
KB
-rw-r--r--
2019-09-14 01:35
array-bracket-spacing.js
8.85
KB
-rw-r--r--
2019-09-14 01:35
array-callback-return.js
7.98
KB
-rw-r--r--
2019-09-14 01:35
array-element-newline.js
9.22
KB
-rw-r--r--
2023-12-15 20:21
arrow-body-style.js
10.27
KB
-rw-r--r--
2019-09-14 01:35
arrow-parens.js
6.38
KB
-rw-r--r--
2019-09-14 01:35
arrow-spacing.js
5.08
KB
-rw-r--r--
2019-09-14 01:35
block-scoped-var.js
3.58
KB
-rw-r--r--
2019-09-14 01:35
block-spacing.js
4.99
KB
-rw-r--r--
2019-09-14 01:35
brace-style.js
7.71
KB
-rw-r--r--
2019-09-14 01:35
callback-return.js
6.33
KB
-rw-r--r--
2019-09-14 01:35
camelcase.js
8.29
KB
-rw-r--r--
2019-09-14 01:35
capitalized-comments.js
10.68
KB
-rw-r--r--
2023-12-15 20:21
class-methods-use-this.js
3.81
KB
-rw-r--r--
2019-09-14 01:35
comma-dangle.js
11.75
KB
-rw-r--r--
2019-09-14 01:35
comma-spacing.js
6.53
KB
-rw-r--r--
2019-09-14 01:35
comma-style.js
11.78
KB
-rw-r--r--
2019-09-14 01:35
complexity.js
4.94
KB
-rw-r--r--
2019-09-14 01:35
computed-property-spacing.js
7.17
KB
-rw-r--r--
2019-09-14 01:35
consistent-return.js
6.59
KB
-rw-r--r--
2019-09-14 01:35
consistent-this.js
4.86
KB
-rw-r--r--
2019-09-14 01:35
constructor-super.js
13.49
KB
-rw-r--r--
2019-09-14 01:35
curly.js
16.24
KB
-rw-r--r--
2019-09-14 01:35
default-case.js
2.76
KB
-rw-r--r--
2019-09-14 01:35
default-param-last.js
1.5
KB
-rw-r--r--
2019-09-14 01:35
dot-location.js
3.34
KB
-rw-r--r--
2019-09-14 01:35
dot-notation.js
6.47
KB
-rw-r--r--
2019-09-14 01:35
eol-last.js
3.79
KB
-rw-r--r--
2019-09-14 01:35
eqeqeq.js
5.55
KB
-rw-r--r--
2023-12-15 20:21
for-direction.js
4.27
KB
-rw-r--r--
2019-09-14 01:35
func-call-spacing.js
7.29
KB
-rw-r--r--
2019-09-14 01:35
func-name-matching.js
9.84
KB
-rw-r--r--
2023-12-15 20:21
func-names.js
6.09
KB
-rw-r--r--
2023-12-15 20:21
func-style.js
2.84
KB
-rw-r--r--
2019-09-14 01:35
function-call-argument-newline.js
4.13
KB
-rw-r--r--
2019-09-14 01:35
function-paren-newline.js
11.15
KB
-rw-r--r--
2019-09-14 01:35
generator-star-spacing.js
6.98
KB
-rw-r--r--
2019-09-14 01:35
getter-return.js
6.02
KB
-rw-r--r--
2019-09-14 01:35
global-require.js
2.3
KB
-rw-r--r--
2019-09-14 01:35
guard-for-in.js
2.3
KB
-rw-r--r--
2019-09-14 01:35
handle-callback-err.js
2.92
KB
-rw-r--r--
2019-09-14 01:35
id-blacklist.js
4.05
KB
-rw-r--r--
2019-09-14 01:35
id-length.js
4.12
KB
-rw-r--r--
2019-09-14 01:35
id-match.js
8.14
KB
-rw-r--r--
2019-09-14 01:35
implicit-arrow-linebreak.js
2.79
KB
-rw-r--r--
2019-09-14 01:35
indent-legacy.js
44.45
KB
-rw-r--r--
2019-09-14 01:35
indent.js
68.68
KB
-rw-r--r--
2019-09-14 01:35
index.js
16.34
KB
-rw-r--r--
2019-09-14 01:35
init-declarations.js
4.37
KB
-rw-r--r--
2019-09-14 01:35
jsx-quotes.js
2.89
KB
-rw-r--r--
2019-09-14 01:35
key-spacing.js
24.82
KB
-rw-r--r--
2019-09-14 01:35
keyword-spacing.js
21.2
KB
-rw-r--r--
2019-09-14 01:35
line-comment-position.js
4.08
KB
-rw-r--r--
2019-09-14 01:35
linebreak-style.js
3.17
KB
-rw-r--r--
2019-09-14 01:35
lines-around-comment.js
15.54
KB
-rw-r--r--
2019-09-14 01:35
lines-around-directive.js
7.58
KB
-rw-r--r--
2019-09-14 01:35
lines-between-class-members.js
5.05
KB
-rw-r--r--
2019-09-14 01:35
max-classes-per-file.js
1.73
KB
-rw-r--r--
2019-09-14 01:35
max-depth.js
4.59
KB
-rw-r--r--
2019-09-14 01:35
max-len.js
13.8
KB
-rw-r--r--
2019-09-14 01:35
max-lines-per-function.js
6.89
KB
-rw-r--r--
2019-09-14 01:35
max-lines.js
4.59
KB
-rw-r--r--
2019-09-14 01:35
max-nested-callbacks.js
3.47
KB
-rw-r--r--
2019-09-14 01:35
max-params.js
3.07
KB
-rw-r--r--
2019-09-14 01:35
max-statements-per-line.js
7.31
KB
-rw-r--r--
2019-09-14 01:35
max-statements.js
5.4
KB
-rw-r--r--
2019-09-14 01:35
multiline-comment-style.js
14.42
KB
-rw-r--r--
2019-09-14 01:35
multiline-ternary.js
3.42
KB
-rw-r--r--
2019-09-14 01:35
new-cap.js
9.44
KB
-rw-r--r--
2019-09-14 01:35
new-parens.js
3.14
KB
-rw-r--r--
2019-09-14 01:35
newline-after-var.js
9.6
KB
-rw-r--r--
2019-09-14 01:35
newline-before-return.js
7.89
KB
-rw-r--r--
2019-09-14 01:35
newline-per-chained-call.js
3.56
KB
-rw-r--r--
2019-09-14 01:35
no-alert.js
3.96
KB
-rw-r--r--
2019-09-14 01:35
no-array-constructor.js
1.36
KB
-rw-r--r--
2019-09-14 01:35
no-async-promise-executor.js
1.1
KB
-rw-r--r--
2019-09-14 01:35
no-await-in-loop.js
2.72
KB
-rw-r--r--
2019-09-14 01:35
no-bitwise.js
3.51
KB
-rw-r--r--
2019-09-14 01:35
no-buffer-constructor.js
1.31
KB
-rw-r--r--
2019-09-14 01:35
no-caller.js
1.17
KB
-rw-r--r--
2019-09-14 01:35
no-case-declarations.js
1.82
KB
-rw-r--r--
2019-09-14 01:35
no-catch-shadow.js
2.44
KB
-rw-r--r--
2019-09-14 01:35
no-class-assign.js
1.67
KB
-rw-r--r--
2019-09-14 01:35
no-compare-neg-zero.js
1.9
KB
-rw-r--r--
2019-09-14 01:35
no-cond-assign.js
5.04
KB
-rw-r--r--
2019-09-14 01:35
no-confusing-arrow.js
2.55
KB
-rw-r--r--
2019-09-14 01:35
no-console.js
4.21
KB
-rw-r--r--
2019-09-14 01:35
no-const-assign.js
1.46
KB
-rw-r--r--
2019-09-14 01:35
no-constant-condition.js
8.48
KB
-rw-r--r--
2019-09-14 01:35
no-continue.js
875
B
-rw-r--r--
2019-09-14 01:35
no-control-regex.js
3.14
KB
-rw-r--r--
2019-09-14 01:35
no-debugger.js
947
B
-rw-r--r--
2019-09-14 01:35
no-delete-var.js
965
B
-rw-r--r--
2019-09-14 01:35
no-div-regex.js
1.42
KB
-rw-r--r--
2019-09-14 01:35
no-dupe-args.js
2.3
KB
-rw-r--r--
2019-09-14 01:35
no-dupe-class-members.js
3.58
KB
-rw-r--r--
2019-09-14 01:35
no-dupe-keys.js
3.87
KB
-rw-r--r--
2019-09-14 01:35
no-duplicate-case.js
1.36
KB
-rw-r--r--
2019-09-14 01:35
no-duplicate-imports.js
4.43
KB
-rw-r--r--
2019-09-14 01:35
no-else-return.js
15.74
KB
-rw-r--r--
2019-09-14 01:35
no-empty-character-class.js
1.91
KB
-rw-r--r--
2019-09-14 01:35
no-empty-function.js
4.61
KB
-rw-r--r--
2019-09-14 01:35
no-empty-pattern.js
1.15
KB
-rw-r--r--
2019-09-14 01:35
no-empty.js
2.44
KB
-rw-r--r--
2019-09-14 01:35
no-eq-null.js
1.21
KB
-rw-r--r--
2019-09-14 01:35
no-eval.js
9.31
KB
-rw-r--r--
2019-09-14 01:35
no-ex-assign.js
1.37
KB
-rw-r--r--
2019-09-14 01:35
no-extend-native.js
6.95
KB
-rw-r--r--
2019-09-14 01:35
no-extra-bind.js
5.71
KB
-rw-r--r--
2019-09-14 01:35
no-extra-boolean-cast.js
6.52
KB
-rw-r--r--
2019-09-14 01:35
no-extra-label.js
4.76
KB
-rw-r--r--
2019-09-14 01:35
no-extra-parens.js
39.11
KB
-rw-r--r--
2019-09-14 01:35
no-extra-semi.js
4.11
KB
-rw-r--r--
2019-09-14 01:35
no-fallthrough.js
4.78
KB
-rw-r--r--
2019-09-14 01:35
no-floating-decimal.js
2.33
KB
-rw-r--r--
2019-09-14 01:35
no-func-assign.js
1.96
KB
-rw-r--r--
2019-09-14 01:35
no-global-assign.js
2.76
KB
-rw-r--r--
2019-09-14 01:35
no-implicit-coercion.js
10.06
KB
-rw-r--r--
2019-09-14 01:35
no-implicit-globals.js
1.78
KB
-rw-r--r--
2019-09-14 01:35
no-implied-eval.js
5.99
KB
-rw-r--r--
2019-09-14 01:35
no-import-assign.js
6.92
KB
-rw-r--r--
2019-09-14 01:35
no-inline-comments.js
2.19
KB
-rw-r--r--
2019-09-14 01:35
no-inner-declarations.js
2.59
KB
-rw-r--r--
2019-09-14 01:35
no-invalid-regexp.js
4.01
KB
-rw-r--r--
2019-09-14 01:35
no-invalid-this.js
3.74
KB
-rw-r--r--
2019-09-14 01:35
no-irregular-whitespace.js
8.72
KB
-rw-r--r--
2019-09-14 01:35
no-iterator.js
1.08
KB
-rw-r--r--
2019-09-14 01:35
no-label-var.js
2.13
KB
-rw-r--r--
2019-09-14 01:35
no-labels.js
4.22
KB
-rw-r--r--
2019-09-14 01:35
no-lone-blocks.js
3.68
KB
-rw-r--r--
2019-09-14 01:35
no-lonely-if.js
3.62
KB
-rw-r--r--
2019-09-14 01:35
no-loop-func.js
6.16
KB
-rw-r--r--
2019-09-14 01:35
no-magic-numbers.js
5.8
KB
-rw-r--r--
2019-09-14 01:35
no-misleading-character-class.js
6.05
KB
-rw-r--r--
2019-09-14 01:35
no-mixed-operators.js
8.21
KB
-rw-r--r--
2019-09-14 01:35
no-mixed-requires.js
6.91
KB
-rw-r--r--
2019-09-14 01:35
no-mixed-spaces-and-tabs.js
4.54
KB
-rw-r--r--
2019-09-14 01:35
no-multi-assign.js
1.18
KB
-rw-r--r--
2019-09-14 01:35
no-multi-spaces.js
4.85
KB
-rw-r--r--
2019-09-14 01:35
no-multi-str.js
1.64
KB
-rw-r--r--
2019-09-14 01:35
no-multiple-empty-lines.js
5.75
KB
-rw-r--r--
2019-09-14 01:35
no-native-reassign.js
2.86
KB
-rw-r--r--
2019-09-14 01:35
no-negated-condition.js
2.68
KB
-rw-r--r--
2019-09-14 01:35
no-negated-in-lhs.js
1.08
KB
-rw-r--r--
2019-09-14 01:35
no-nested-ternary.js
986
B
-rw-r--r--
2019-09-14 01:35
no-new-func.js
1.24
KB
-rw-r--r--
2019-09-14 01:35
no-new-object.js
923
B
-rw-r--r--
2019-09-14 01:35
no-new-require.js
960
B
-rw-r--r--
2019-09-14 01:35
no-new-symbol.js
1.27
KB
-rw-r--r--
2019-09-14 01:35
no-new-wrappers.js
1.05
KB
-rw-r--r--
2019-09-14 01:35
no-new.js
913
B
-rw-r--r--
2019-09-14 01:35
no-obj-calls.js
1.84
KB
-rw-r--r--
2019-09-14 01:35
no-octal-escape.js
1.42
KB
-rw-r--r--
2019-09-14 01:35
no-octal.js
886
B
-rw-r--r--
2019-09-14 01:35
no-param-reassign.js
6.8
KB
-rw-r--r--
2019-09-14 01:35
no-path-concat.js
1.44
KB
-rw-r--r--
2019-09-14 01:35
no-plusplus.js
1.66
KB
-rw-r--r--
2019-09-14 01:35
no-process-env.js
1.01
KB
-rw-r--r--
2019-09-14 01:35
no-process-exit.js
1.08
KB
-rw-r--r--
2019-09-14 01:35
no-proto.js
1.07
KB
-rw-r--r--
2019-09-14 01:35
no-prototype-builtins.js
1.63
KB
-rw-r--r--
2019-09-14 01:35
no-redeclare.js
5.6
KB
-rw-r--r--
2019-09-14 01:35
no-regex-spaces.js
3.73
KB
-rw-r--r--
2019-09-14 01:35
no-restricted-globals.js
3.76
KB
-rw-r--r--
2019-09-14 01:35
no-restricted-imports.js
11.43
KB
-rw-r--r--
2023-12-15 20:21
no-restricted-modules.js
5.9
KB
-rw-r--r--
2023-12-15 20:21
no-restricted-properties.js
6.46
KB
-rw-r--r--
2019-09-14 01:35
no-restricted-syntax.js
1.97
KB
-rw-r--r--
2019-09-14 01:35
no-return-assign.js
2.49
KB
-rw-r--r--
2019-09-14 01:35
no-return-await.js
3.73
KB
-rw-r--r--
2019-09-14 01:35
no-script-url.js
1.05
KB
-rw-r--r--
2019-09-14 01:35
no-self-assign.js
6.79
KB
-rw-r--r--
2019-09-14 01:35
no-self-compare.js
1.72
KB
-rw-r--r--
2019-09-14 01:35
no-sequences.js
3.94
KB
-rw-r--r--
2019-09-14 01:35
no-shadow-restricted-names.js
2
KB
-rw-r--r--
2019-09-14 01:35
no-shadow.js
6.81
KB
-rw-r--r--
2019-09-14 01:35
no-spaced-func.js
2.34
KB
-rw-r--r--
2019-09-14 01:35
no-sparse-arrays.js
1.07
KB
-rw-r--r--
2019-09-14 01:35
no-sync.js
1.52
KB
-rw-r--r--
2019-09-14 01:35
no-tabs.js
2.01
KB
-rw-r--r--
2019-09-14 01:35
no-template-curly-in-string.js
1.04
KB
-rw-r--r--
2019-09-14 01:35
no-ternary.js
793
B
-rw-r--r--
2019-09-14 01:35
no-this-before-super.js
9.95
KB
-rw-r--r--
2019-09-14 01:35
no-throw-literal.js
1.26
KB
-rw-r--r--
2019-09-14 01:35
no-trailing-spaces.js
6.13
KB
-rw-r--r--
2019-09-14 01:35
no-undef-init.js
2.01
KB
-rw-r--r--
2019-09-14 01:35
no-undef.js
2.24
KB
-rw-r--r--
2019-09-14 01:35
no-undefined.js
2.07
KB
-rw-r--r--
2019-09-14 01:35
no-underscore-dangle.js
7.44
KB
-rw-r--r--
2019-09-14 01:35
no-unexpected-multiline.js
3.59
KB
-rw-r--r--
2019-09-14 01:35
no-unmodified-loop-condition.js
11.65
KB
-rw-r--r--
2019-09-14 01:35
no-unneeded-ternary.js
6.58
KB
-rw-r--r--
2019-09-14 01:35
no-unreachable.js
6.29
KB
-rw-r--r--
2019-09-14 01:35
no-unsafe-finally.js
3.87
KB
-rw-r--r--
2019-09-14 01:35
no-unsafe-negation.js
2.36
KB
-rw-r--r--
2019-09-14 01:35
no-unused-expressions.js
4.7
KB
-rw-r--r--
2019-09-14 01:35
no-unused-labels.js
3.22
KB
-rw-r--r--
2019-09-14 01:35
no-unused-vars.js
23.08
KB
-rw-r--r--
2019-09-14 01:35
no-use-before-define.js
7.45
KB
-rw-r--r--
2019-09-14 01:35
no-useless-call.js
2.78
KB
-rw-r--r--
2019-09-14 01:35
no-useless-catch.js
1.55
KB
-rw-r--r--
2019-09-14 01:35
no-useless-computed-key.js
3.19
KB
-rw-r--r--
2019-09-14 01:35
no-useless-concat.js
3.16
KB
-rw-r--r--
2019-09-14 01:35
no-useless-constructor.js
5.46
KB
-rw-r--r--
2019-09-14 01:35
no-useless-escape.js
8.98
KB
-rw-r--r--
2019-09-14 01:35
no-useless-rename.js
5.08
KB
-rw-r--r--
2019-09-14 01:35
no-useless-return.js
11.77
KB
-rw-r--r--
2019-09-14 01:35
no-var.js
12.13
KB
-rw-r--r--
2019-09-14 01:35
no-void.js
1.03
KB
-rw-r--r--
2019-09-14 01:35
no-warning-comments.js
5.4
KB
-rw-r--r--
2019-09-14 01:35
no-whitespace-before-property.js
3.33
KB
-rw-r--r--
2019-09-14 01:35
no-with.js
784
B
-rw-r--r--
2019-09-14 01:35
nonblock-statement-body-position.js
4.41
KB
-rw-r--r--
2023-12-15 20:21
object-curly-newline.js
10.69
KB
-rw-r--r--
2019-09-14 01:35
object-curly-spacing.js
11.27
KB
-rw-r--r--
2019-09-14 01:35
object-property-newline.js
3.59
KB
-rw-r--r--
2019-09-14 01:35
object-shorthand.js
20.66
KB
-rw-r--r--
2019-09-14 01:35
one-var-declaration-per-line.js
2.74
KB
-rw-r--r--
2019-09-14 01:35
one-var.js
21
KB
-rw-r--r--
2019-09-14 01:35
operator-assignment.js
7.73
KB
-rw-r--r--
2019-09-14 01:35
operator-linebreak.js
10.01
KB
-rw-r--r--
2019-09-14 01:35
padded-blocks.js
10.05
KB
-rw-r--r--
2019-09-14 01:35
padding-line-between-statements.js
20
KB
-rw-r--r--
2023-12-15 20:21
prefer-arrow-callback.js
11.17
KB
-rw-r--r--
2019-09-14 01:35
prefer-const.js
16.69
KB
-rw-r--r--
2019-09-14 01:35
prefer-destructuring.js
9.7
KB
-rw-r--r--
2019-09-14 01:35
prefer-named-capture-group.js
3.94
KB
-rw-r--r--
2019-09-14 01:35
prefer-numeric-literals.js
3.73
KB
-rw-r--r--
2019-09-14 01:35
prefer-object-spread.js
9.05
KB
-rw-r--r--
2019-09-14 01:35
prefer-promise-reject-errors.js
5.41
KB
-rw-r--r--
2019-09-14 01:35
prefer-reflect.js
4.5
KB
-rw-r--r--
2019-09-14 01:35
prefer-regex-literals.js
4.4
KB
-rw-r--r--
2019-09-14 01:35
prefer-rest-params.js
3.22
KB
-rw-r--r--
2019-09-14 01:35
prefer-spread.js
2.77
KB
-rw-r--r--
2019-09-14 01:35
prefer-template.js
11.18
KB
-rw-r--r--
2019-09-14 01:35
quote-props.js
11.41
KB
-rw-r--r--
2019-09-14 01:35
quotes.js
11.48
KB
-rw-r--r--
2019-09-14 01:35
radix.js
5.16
KB
-rw-r--r--
2019-09-14 01:35
require-atomic-updates.js
9.51
KB
-rw-r--r--
2019-09-14 01:35
require-await.js
3.04
KB
-rw-r--r--
2019-09-14 01:35
require-jsdoc.js
3.65
KB
-rw-r--r--
2019-09-14 01:35
require-unicode-regexp.js
1.94
KB
-rw-r--r--
2019-09-14 01:35
require-yield.js
2.01
KB
-rw-r--r--
2019-09-14 01:35
rest-spread-spacing.js
3.93
KB
-rw-r--r--
2019-09-14 01:35
semi-spacing.js
7.62
KB
-rw-r--r--
2019-09-14 01:35
semi-style.js
4.98
KB
-rw-r--r--
2019-09-14 01:35
semi.js
11.56
KB
-rw-r--r--
2019-09-14 01:35
sort-imports.js
9.08
KB
-rw-r--r--
2019-09-14 01:35
sort-keys.js
7.64
KB
-rw-r--r--
2023-12-15 20:21
sort-vars.js
3.97
KB
-rw-r--r--
2019-09-14 01:35
space-before-blocks.js
5.59
KB
-rw-r--r--
2019-09-14 01:35
space-before-function-paren.js
5.56
KB
-rw-r--r--
2019-09-14 01:35
space-in-parens.js
10.41
KB
-rw-r--r--
2019-09-14 01:35
space-infix-ops.js
5.35
KB
-rw-r--r--
2019-09-14 01:35
space-unary-ops.js
12.3
KB
-rw-r--r--
2019-09-14 01:35
spaced-comment.js
12.27
KB
-rw-r--r--
2019-09-14 01:35
strict.js
10.31
KB
-rw-r--r--
2019-09-14 01:35
switch-colon-spacing.js
5.2
KB
-rw-r--r--
2019-09-14 01:35
symbol-description.js
1.98
KB
-rw-r--r--
2019-09-14 01:35
template-curly-spacing.js
4.06
KB
-rw-r--r--
2019-09-14 01:35
template-tag-spacing.js
2.79
KB
-rw-r--r--
2019-09-14 01:35
unicode-bom.js
2.15
KB
-rw-r--r--
2019-09-14 01:35
use-isnan.js
1.01
KB
-rw-r--r--
2019-09-14 01:35
valid-jsdoc.js
20.04
KB
-rw-r--r--
2019-09-14 01:35
valid-typeof.js
2.97
KB
-rw-r--r--
2019-09-14 01:35
vars-on-top.js
4.94
KB
-rw-r--r--
2019-09-14 01:35
wrap-iife.js
5.91
KB
-rw-r--r--
2019-09-14 01:35
wrap-regex.js
1.86
KB
-rw-r--r--
2019-09-14 01:35
yield-star-spacing.js
4.22
KB
-rw-r--r--
2019-09-14 01:35
yoda.js
11.41
KB
-rw-r--r--
2019-09-14 01:35
Save
Rename
/** * @fileoverview Look for useless escapes in strings and regexes * @author Onur Temizkan */ "use strict"; const astUtils = require("./utils/ast-utils"); //------------------------------------------------------------------------------ // Rule Definition //------------------------------------------------------------------------------ /** * Returns the union of two sets. * @param {Set} setA The first set * @param {Set} setB The second set * @returns {Set} The union of the two sets */ function union(setA, setB) { return new Set(function *() { yield* setA; yield* setB; }()); } const VALID_STRING_ESCAPES = union(new Set("\\nrvtbfux"), astUtils.LINEBREAKS); const REGEX_GENERAL_ESCAPES = new Set("\\bcdDfnpPrsStvwWxu0123456789]"); const REGEX_NON_CHARCLASS_ESCAPES = union(REGEX_GENERAL_ESCAPES, new Set("^/.$*+?[{}|()Bk")); /** * Parses a regular expression into a list of characters with character class info. * @param {string} regExpText The raw text used to create the regular expression * @returns {Object[]} A list of characters, each with info on escaping and whether they're in a character class. * @example * * parseRegExp('a\\b[cd-]') * * returns: * [ * {text: 'a', index: 0, escaped: false, inCharClass: false, startsCharClass: false, endsCharClass: false}, * {text: 'b', index: 2, escaped: true, inCharClass: false, startsCharClass: false, endsCharClass: false}, * {text: 'c', index: 4, escaped: false, inCharClass: true, startsCharClass: true, endsCharClass: false}, * {text: 'd', index: 5, escaped: false, inCharClass: true, startsCharClass: false, endsCharClass: false}, * {text: '-', index: 6, escaped: false, inCharClass: true, startsCharClass: false, endsCharClass: false} * ] */ function parseRegExp(regExpText) { const charList = []; regExpText.split("").reduce((state, char, index) => { if (!state.escapeNextChar) { if (char === "\\") { return Object.assign(state, { escapeNextChar: true }); } if (char === "[" && !state.inCharClass) { return Object.assign(state, { inCharClass: true, startingCharClass: true }); } if (char === "]" && state.inCharClass) { if (charList.length && charList[charList.length - 1].inCharClass) { charList[charList.length - 1].endsCharClass = true; } return Object.assign(state, { inCharClass: false, startingCharClass: false }); } } charList.push({ text: char, index, escaped: state.escapeNextChar, inCharClass: state.inCharClass, startsCharClass: state.startingCharClass, endsCharClass: false }); return Object.assign(state, { escapeNextChar: false, startingCharClass: false }); }, { escapeNextChar: false, inCharClass: false, startingCharClass: false }); return charList; } module.exports = { meta: { type: "suggestion", docs: { description: "disallow unnecessary escape characters", category: "Best Practices", recommended: true, url: "https://eslint.org/docs/rules/no-useless-escape" }, schema: [] }, create(context) { const sourceCode = context.getSourceCode(); /** * Reports a node * @param {ASTNode} node The node to report * @param {number} startOffset The backslash's offset from the start of the node * @param {string} character The uselessly escaped character (not including the backslash) * @returns {void} */ function report(node, startOffset, character) { const start = sourceCode.getLocFromIndex(sourceCode.getIndexFromLoc(node.loc.start) + startOffset); context.report({ node, loc: { start, end: { line: start.line, column: start.column + 1 } }, message: "Unnecessary escape character: \\{{character}}.", data: { character } }); } /** * Checks if the escape character in given string slice is unnecessary. * * @private * @param {ASTNode} node - node to validate. * @param {string} match - string slice to validate. * @returns {void} */ function validateString(node, match) { const isTemplateElement = node.type === "TemplateElement"; const escapedChar = match[0][1]; let isUnnecessaryEscape = !VALID_STRING_ESCAPES.has(escapedChar); let isQuoteEscape; if (isTemplateElement) { isQuoteEscape = escapedChar === "`"; if (escapedChar === "$") { // Warn if `\$` is not followed by `{` isUnnecessaryEscape = match.input[match.index + 2] !== "{"; } else if (escapedChar === "{") { /* * Warn if `\{` is not preceded by `$`. If preceded by `$`, escaping * is necessary and the rule should not warn. If preceded by `/$`, the rule * will warn for the `/$` instead, as it is the first unnecessarily escaped character. */ isUnnecessaryEscape = match.input[match.index - 1] !== "$"; } } else { isQuoteEscape = escapedChar === node.raw[0]; } if (isUnnecessaryEscape && !isQuoteEscape) { report(node, match.index + 1, match[0].slice(1)); } } /** * Checks if a node has an escape. * * @param {ASTNode} node - node to check. * @returns {void} */ function check(node) { const isTemplateElement = node.type === "TemplateElement"; if ( isTemplateElement && node.parent && node.parent.parent && node.parent.parent.type === "TaggedTemplateExpression" && node.parent === node.parent.parent.quasi ) { // Don't report tagged template literals, because the backslash character is accessible to the tag function. return; } if (typeof node.value === "string" || isTemplateElement) { /* * JSXAttribute doesn't have any escape sequence: https://facebook.github.io/jsx/. * In addition, backticks are not supported by JSX yet: https://github.com/facebook/jsx/issues/25. */ if (node.parent.type === "JSXAttribute" || node.parent.type === "JSXElement" || node.parent.type === "JSXFragment") { return; } const value = isTemplateElement ? node.value.raw : node.raw.slice(1, -1); const pattern = /\\[^\d]/gu; let match; while ((match = pattern.exec(value))) { validateString(node, match); } } else if (node.regex) { parseRegExp(node.regex.pattern) /* * The '-' character is a special case, because it's only valid to escape it if it's in a character * class, and is not at either edge of the character class. To account for this, don't consider '-' * characters to be valid in general, and filter out '-' characters that appear in the middle of a * character class. */ .filter(charInfo => !(charInfo.text === "-" && charInfo.inCharClass && !charInfo.startsCharClass && !charInfo.endsCharClass)) /* * The '^' character is also a special case; it must always be escaped outside of character classes, but * it only needs to be escaped in character classes if it's at the beginning of the character class. To * account for this, consider it to be a valid escape character outside of character classes, and filter * out '^' characters that appear at the start of a character class. */ .filter(charInfo => !(charInfo.text === "^" && charInfo.startsCharClass)) // Filter out characters that aren't escaped. .filter(charInfo => charInfo.escaped) // Filter out characters that are valid to escape, based on their position in the regular expression. .filter(charInfo => !(charInfo.inCharClass ? REGEX_GENERAL_ESCAPES : REGEX_NON_CHARCLASS_ESCAPES).has(charInfo.text)) // Report all the remaining characters. .forEach(charInfo => report(node, charInfo.index, charInfo.text)); } } return { Literal: check, TemplateElement: check }; } };