tsconfig.json

{
  "compilerOptions": {
    "target": "esnext",
    "module": "esnext",
    "strict": true,
    "jsx": "preserve",
    "importHelpers": true,
    "noImplicitAny": true,
    "strictNullChecks": true,
    "moduleResolution": "node",
    "esModuleInterop": true,
    "allowSyntheticDefaultImports": true,
    "noFallthroughCasesInSwitch": true,
    "noUnusedParameters": false,
    "noImplicitReturns": true,
    "noUnusedLocals": true,
    "sourceMap": true,
    "noEmit": true,
    "isolatedModules": true,
    "baseUrl": ".",
    "paths": {
      "*": ["*", "src/*"],
      "@/js/*": ["src/js/*"],
      "@/img/*": ["static/images/*"],
      // Override buggy React-SLDS type definitions
      "@salesforce/design-system-react/components/*": [
        "src/js/@types/design-system-react/component.d.ts"
      ],
      "@salesforce/design-system-react/components/settings": [
        "src/js/@types/design-system-react/settings.d.ts"
      ],
      "@salesforce/design-system-react/components/combobox/filter": [
        "src/js/@types/design-system-react/combobox-filter.d.ts"
      ],
      "@salesforce/design-system-react/components/utilities/UNSAFE_direction": [
        "src/js/@types/design-system-react/direction.d.ts"
      ],
      "@salesforce/design-system-react/components/utilities/UNSAFE_direction/private/language-direction": [
        "src/js/@types/design-system-react/language-direction.d.ts"
      ]
    }
  },
  "include": ["src/**/*.ts", "src/**/*.tsx"],
  "exclude": ["node_modules"]
}