JS.BASE.NO.CLASS.ASSIGN
Disallow reassigning class members
ClassDeclaration creates a variable, and we can modify the variable.
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/*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:
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/*eslint no-class-assign: "error"*/
/*eslint-env es6*/
class A { }
A = 0;
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/*eslint no-class-assign: "error"*/
/*eslint-env es6*/
A = 0;
class A { }
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/*eslint no-class-assign: "error"*/
/*eslint-env es6*/
class A {
b() {
A = 0;
}
}
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/*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:
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/*eslint no-class-assign: "error"*/
/*eslint-env es6*/
let A = class A { }
A = 0; // A is a variable.
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/*eslint no-class-assign: "error"*/
/*eslint-env es6*/
let A = class {
b() {
A = 0; // A is a variable.
}
}
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/*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.