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 A rule to suggest using template literals instead of string concatenation. * @author Toru Nagashima */ "use strict"; //------------------------------------------------------------------------------ // Requirements //------------------------------------------------------------------------------ const astUtils = require("./utils/ast-utils"); //------------------------------------------------------------------------------ // Helpers //------------------------------------------------------------------------------ /** * Checks whether or not a given node is a concatenation. * @param {ASTNode} node - A node to check. * @returns {boolean} `true` if the node is a concatenation. */ function isConcatenation(node) { return node.type === "BinaryExpression" && node.operator === "+"; } /** * Gets the top binary expression node for concatenation in parents of a given node. * @param {ASTNode} node - A node to get. * @returns {ASTNode} the top binary expression node in parents of a given node. */ function getTopConcatBinaryExpression(node) { let currentNode = node; while (isConcatenation(currentNode.parent)) { currentNode = currentNode.parent; } return currentNode; } /** * Determines whether a given node is a octal escape sequence * @param {ASTNode} node A node to check * @returns {boolean} `true` if the node is an octal escape sequence */ function isOctalEscapeSequence(node) { // No need to check TemplateLiterals – would throw error with octal escape const isStringLiteral = node.type === "Literal" && typeof node.value === "string"; if (!isStringLiteral) { return false; } return astUtils.hasOctalEscapeSequence(node.raw); } /** * Checks whether or not a node contains a octal escape sequence * @param {ASTNode} node A node to check * @returns {boolean} `true` if the node contains an octal escape sequence */ function hasOctalEscapeSequence(node) { if (isConcatenation(node)) { return hasOctalEscapeSequence(node.left) || hasOctalEscapeSequence(node.right); } return isOctalEscapeSequence(node); } /** * Checks whether or not a given binary expression has string literals. * @param {ASTNode} node - A node to check. * @returns {boolean} `true` if the node has string literals. */ function hasStringLiteral(node) { if (isConcatenation(node)) { // `left` is deeper than `right` normally. return hasStringLiteral(node.right) || hasStringLiteral(node.left); } return astUtils.isStringLiteral(node); } /** * Checks whether or not a given binary expression has non string literals. * @param {ASTNode} node - A node to check. * @returns {boolean} `true` if the node has non string literals. */ function hasNonStringLiteral(node) { if (isConcatenation(node)) { // `left` is deeper than `right` normally. return hasNonStringLiteral(node.right) || hasNonStringLiteral(node.left); } return !astUtils.isStringLiteral(node); } /** * Determines whether a given node will start with a template curly expression (`${}`) when being converted to a template literal. * @param {ASTNode} node The node that will be fixed to a template literal * @returns {boolean} `true` if the node will start with a template curly. */ function startsWithTemplateCurly(node) { if (node.type === "BinaryExpression") { return startsWithTemplateCurly(node.left); } if (node.type === "TemplateLiteral") { return node.expressions.length && node.quasis.length && node.quasis[0].range[0] === node.quasis[0].range[1]; } return node.type !== "Literal" || typeof node.value !== "string"; } /** * Determines whether a given node end with a template curly expression (`${}`) when being converted to a template literal. * @param {ASTNode} node The node that will be fixed to a template literal * @returns {boolean} `true` if the node will end with a template curly. */ function endsWithTemplateCurly(node) { if (node.type === "BinaryExpression") { return startsWithTemplateCurly(node.right); } if (node.type === "TemplateLiteral") { return node.expressions.length && node.quasis.length && node.quasis[node.quasis.length - 1].range[0] === node.quasis[node.quasis.length - 1].range[1]; } return node.type !== "Literal" || typeof node.value !== "string"; } //------------------------------------------------------------------------------ // Rule Definition //------------------------------------------------------------------------------ module.exports = { meta: { type: "suggestion", docs: { description: "require template literals instead of string concatenation", category: "ECMAScript 6", recommended: false, url: "https://eslint.org/docs/rules/prefer-template" }, schema: [], fixable: "code" }, create(context) { const sourceCode = context.getSourceCode(); let done = Object.create(null); /** * Gets the non-token text between two nodes, ignoring any other tokens that appear between the two tokens. * @param {ASTNode} node1 The first node * @param {ASTNode} node2 The second node * @returns {string} The text between the nodes, excluding other tokens */ function getTextBetween(node1, node2) { const allTokens = [node1].concat(sourceCode.getTokensBetween(node1, node2)).concat(node2); const sourceText = sourceCode.getText(); return allTokens.slice(0, -1).reduce((accumulator, token, index) => accumulator + sourceText.slice(token.range[1], allTokens[index + 1].range[0]), ""); } /** * Returns a template literal form of the given node. * @param {ASTNode} currentNode A node that should be converted to a template literal * @param {string} textBeforeNode Text that should appear before the node * @param {string} textAfterNode Text that should appear after the node * @returns {string} A string form of this node, represented as a template literal */ function getTemplateLiteral(currentNode, textBeforeNode, textAfterNode) { if (currentNode.type === "Literal" && typeof currentNode.value === "string") { /* * If the current node is a string literal, escape any instances of ${ or ` to prevent them from being interpreted * as a template placeholder. However, if the code already contains a backslash before the ${ or ` * for some reason, don't add another backslash, because that would change the meaning of the code (it would cause * an actual backslash character to appear before the dollar sign). */ return `\`${currentNode.raw.slice(1, -1).replace(/\\*(\$\{|`)/gu, matched => { if (matched.lastIndexOf("\\") % 2) { return `\\${matched}`; } return matched; // Unescape any quotes that appear in the original Literal that no longer need to be escaped. }).replace(new RegExp(`\\\\${currentNode.raw[0]}`, "gu"), currentNode.raw[0])}\``; } if (currentNode.type === "TemplateLiteral") { return sourceCode.getText(currentNode); } if (isConcatenation(currentNode) && hasStringLiteral(currentNode) && hasNonStringLiteral(currentNode)) { const plusSign = sourceCode.getFirstTokenBetween(currentNode.left, currentNode.right, token => token.value === "+"); const textBeforePlus = getTextBetween(currentNode.left, plusSign); const textAfterPlus = getTextBetween(plusSign, currentNode.right); const leftEndsWithCurly = endsWithTemplateCurly(currentNode.left); const rightStartsWithCurly = startsWithTemplateCurly(currentNode.right); if (leftEndsWithCurly) { // If the left side of the expression ends with a template curly, add the extra text to the end of the curly bracket. // `foo${bar}` /* comment */ + 'baz' --> `foo${bar /* comment */ }${baz}` return getTemplateLiteral(currentNode.left, textBeforeNode, textBeforePlus + textAfterPlus).slice(0, -1) + getTemplateLiteral(currentNode.right, null, textAfterNode).slice(1); } if (rightStartsWithCurly) { // Otherwise, if the right side of the expression starts with a template curly, add the text there. // 'foo' /* comment */ + `${bar}baz` --> `foo${ /* comment */ bar}baz` return getTemplateLiteral(currentNode.left, textBeforeNode, null).slice(0, -1) + getTemplateLiteral(currentNode.right, textBeforePlus + textAfterPlus, textAfterNode).slice(1); } /* * Otherwise, these nodes should not be combined into a template curly, since there is nowhere to put * the text between them. */ return `${getTemplateLiteral(currentNode.left, textBeforeNode, null)}${textBeforePlus}+${textAfterPlus}${getTemplateLiteral(currentNode.right, textAfterNode, null)}`; } return `\`\${${textBeforeNode || ""}${sourceCode.getText(currentNode)}${textAfterNode || ""}}\``; } /** * Returns a fixer object that converts a non-string binary expression to a template literal * @param {SourceCodeFixer} fixer The fixer object * @param {ASTNode} node A node that should be converted to a template literal * @returns {Object} A fix for this binary expression */ function fixNonStringBinaryExpression(fixer, node) { const topBinaryExpr = getTopConcatBinaryExpression(node.parent); if (hasOctalEscapeSequence(topBinaryExpr)) { return null; } return fixer.replaceText(topBinaryExpr, getTemplateLiteral(topBinaryExpr, null, null)); } /** * Reports if a given node is string concatenation with non string literals. * * @param {ASTNode} node - A node to check. * @returns {void} */ function checkForStringConcat(node) { if (!astUtils.isStringLiteral(node) || !isConcatenation(node.parent)) { return; } const topBinaryExpr = getTopConcatBinaryExpression(node.parent); // Checks whether or not this node had been checked already. if (done[topBinaryExpr.range[0]]) { return; } done[topBinaryExpr.range[0]] = true; if (hasNonStringLiteral(topBinaryExpr)) { context.report({ node: topBinaryExpr, message: "Unexpected string concatenation.", fix: fixer => fixNonStringBinaryExpression(fixer, node) }); } } return { Program() { done = Object.create(null); }, Literal: checkForStringConcat, TemplateLiteral: checkForStringConcat }; } };