eslint/no-class-assign Correctness

✅ This rule is turned on by default.

Disallow reassigning class variables.

This rule can be disabled for TypeScript code, as the TypeScript compiler enforces this check.

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 using the config file or in the CLI, you can use:

Config (.oxlintrc.json)CLI

json

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

bash

oxlint --deny no-class-assign