Invalid regular expression flags catch on no-octal-escape rule

Tell us about your environment

• ESLint Version: 6.7.1
• Node Version: 10.16.3
• npm Version: 6.12.1

What parser (default, Babel-ESLint, etc.) are you using? babel-eslint

Please show your full configuration:

Configuration

{
  "extends": ["airbnb", "prettier"],
  "parser": "babel-eslint",
  "env": {
    "jest": true,
    "browser": true
  },
  "rules": {
    "no-restricted-syntax": ["error", "LabeledStatement", "WithStatement"],
    "no-console": "off",
    "react/prop-types": "off",
    "react/destructuring-assignment": "off",
    "react/jsx-filename-extension": "off",
    "no-param-reassign": "off",
    "spaced-comment": "off",
    "no-nested-ternary": "off",
    "no-return-assign": "off",
    "no-else-return": "off"
  }
}

What did you do? Please include the actual source code causing the issue, as well as the command that you used to run ESLint.

Linter is catching an invalid regular expressions error in the no-octal-escape rule file. Changing the regular expression flags to /u seems to fix the issue.

What did you expect to happen?

ESLint to operate as usual

What actually happened? Please include the actual, raw output from ESLint.

[trevjnels]

Howdy - know this has been closed - but if anyone is experiencing this error in prettier-atom a simple update to atom fixed it. I was running 1.3.something

[nkas17]

I am also seeing this exact error in VSCode when using the extension - https://marketplace.visualstudio.com/items?itemName=dbaeumer.vscode-eslint

Changing the regular expression flags to /u seems to fix the issue for me as well

• ESLint Version: 6.7.2
• Node Version: 10.15.0
• npm Version: 6.10.0

[Info  - 1:43:07 PM] ESLint server stopped.
[Info  - 1:43:10 PM] ESLint server running in node v8.9.3
[Info  - 1:43:10 PM] ESLint server is running.
[Info  - 1:43:19 PM] ESLint library loaded from: c:\Users\E008950\desktop\projects\personal\quick-start\node_modules\eslint\lib\api.js
[Error - 1:43:23 PM] ESLint stack trace:
[Error - 1:43:23 PM] c:\Users\E008950\desktop\projects\personal\quick-start\node_modules\eslint\lib\rules\no-octal-escape.js:41
                    /^(?:[^\\]|\\.)*?\\([0-3][0-7]{1,2}|[4-7][0-7]|0(?=[89])|[1-7])/us
                    ^

SyntaxError: Invalid regular expression flags
    at createScript (vm.js:80:10)
    at Object.runInThisContext (vm.js:139:10)
    at Module._compile (module.js:606:28)
    at Object.Module._extensions..js (module.js:653:10)
    at Module.load (module.js:561:32)
    at tryModuleLoad (module.js:504:12)
    at Function.Module._load (module.js:496:3)
    at Module.require (module.js:586:17)
    at require (internal/module.js:11:18)
    at no-octal-escape (c:\Users\E008950\desktop\projects\personal\quick-start\node_modules\eslint\lib\rules\index.js:171:30)