pve-eslint/eslint/docs/rules/no-class-assign.md
Dominik Csapak eb39fafa4f first commit
includes a (minimal) working wrapper

Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
2020-04-06 15:06:03 +02:00

1.4 KiB

Disallow modifying variables of class declarations (no-class-assign)

ClassDeclaration creates a variable, and we can modify the variable.

/*eslint-env es6*/

class A { }
A = 0;

But the modification is a mistake in most cases.

Rule Details

This rule is aimed to flag modifying variables of class declarations.

Examples of incorrect code for this rule:

/*eslint no-class-assign: "error"*/
/*eslint-env es6*/

class A { }
A = 0;
/*eslint no-class-assign: "error"*/
/*eslint-env es6*/

A = 0;
class A { }
/*eslint no-class-assign: "error"*/
/*eslint-env es6*/

class A {
    b() {
        A = 0;
    }
}
/*eslint no-class-assign: "error"*/
/*eslint-env es6*/

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

Examples of correct code for this rule:

/*eslint no-class-assign: "error"*/
/*eslint-env es6*/

let A = class A { }
A = 0; // A is a variable.
/*eslint no-class-assign: "error"*/
/*eslint-env es6*/

let A = class {
    b() {
        A = 0; // A is a variable.
    }
}
/*eslint no-class-assign: 2*/
/*eslint-env es6*/

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

When Not To Use It

If you don't want to be notified about modifying variables of class declarations, you can safely disable this rule.