eslint/no-class-assign Correctness

✅ This rule is turned on by default.

Disallow reassigning class variables.

ClassDeclaration creates a variable that can be re-assigned, but the re-assignment is a mistake in most cases.

Examples of incorrect code for this rule:

javascript

class A {}
A = 0;

javascript

A = 0;
class A {}

javascript

class A {
  b() {
    A = 0;
  }
}

javascript

let A = class A {
  b() {
    A = 0;
    // `let A` is shadowed by the class name.
  }
};

Examples of correct code for this rule:

javascript

let A = class A {};
A = 0; // A is a variable.

javascript

let A = class {
  b() {
    A = 0; // A is a variable.
  }
};

javascript

class A {
  b(A) {
    A = 0; // A is a parameter.
  }
}

How to use

To enable this rule in the CLI or using the config file, you can use:

CLIConfig (.oxlintrc.json)

bash

oxlint --deny no-class-assign

json

{
  "rules": {
    "no-class-assign": "error"
  }
}