Business
Jobs
  • About Us
  • Solutions
    • Job Postings
      Post your job and receive qualified candidates in 48h.
    • Candidate Assessments
      500+ technical and psychological tests, plus anti-fraud.
    • Headhunting
      Tailor-made executive search from start to finish.
    • Payroll + EOR
      Payroll dispersal and EOR across 15+ LATAM countries.
  • Pricing
  • Jobs

0

276
Views
'React' was used before it was defined

I am working with create-react-app + typescript + eslint application and during build have such error:

Line 1:8:  'React' was used before it was defined  @typescript-eslint/no-use-before-define

Code in my component starts with:

import React from "react";

Eslint settings:

module.exports = {
  parser: "@typescript-eslint/parser",
  parserOptions: {
    ecmaVersion: 2020,
    sourceType: "module",
    ecmaFeatures: {
      jsx: true
    }
  },
  settings: {
    react: {
      version: "detect"
    }
  },
  extends: [
    "plugin:react/recommended",
    "plugin:@typescript-eslint/recommended",
    "prettier/@typescript-eslint",
    "plugin:prettier/recommended"
  ],
  rules: {
    "@typescript-eslint/explicit-module-boundary-types": 0,
    "@typescript-eslint/triple-slash-reference": 0,
    "no-use-before-define": "off",
    "@typescript-eslint/no-use-before-define": "off"
  },
};

Some part of package.json:

"devDependencies": {
  "@typescript-eslint/eslint-plugin": "^4.1.0",
  "@typescript-eslint/parser": "^4.1.0",
  "babel-eslint": "^10.1.0",
  "eslint": "^6.6.0",
  "eslint-config-airbnb": "^18.1.0",
  "eslint-config-prettier": "^6.11.0",
  "eslint-plugin-import": "^2.20.2",
  "eslint-plugin-prettier": "^3.1.3",
  "eslint-plugin-react": "^7.20.0",
  "prettier": "^2.0.5",
  "start-server-and-test": "^1.11.3"
},
"dependencies": {
  ...
  "react-scripts": "3.4.3",
  ...
}

I tried:

  • Read https://github.com/typescript-eslint/typescript-eslint/issues/2502
  • Disable @typescript-eslint/no-use-before-define and no-use-before-define in .eslintrc.js
  • Actually I tried to delete .eslintrc.js at all, but had the same error.
over 4 years ago · Santiago Trujillo
Answer question
Find remote jobs

Discover the new way to find a job!

Top jobs
Top job categories
Business
Post vacancy Pricing Sales
Legal
Terms and conditions Privacy policy
© 2026 PeakU Inc. All Rights Reserved.
Andres GPT
Show me some job opportunities
There's an error!