no-class-assign

禁止重新分配类成员

ClassDeclaration 创建了一个变量，我们可以修改这个变量。

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

class A { }
A = 0;
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但在大多数情况下，修改是错误的。

¥But the modification is a mistake in most cases.

规则详情

¥Rule Details

该规则旨在标记修改类声明的变量。

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

此规则的错误代码示例：

¥Examples of incorrect code for this rule:

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

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

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

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

let A = class A {
    b() {
        A = 0;
        // `let A` is shadowed by the class name.
    }
}
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此规则的正确代码示例：

¥Examples of correct code for this rule:

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

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

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

class A {
    b(A) {
        A = 0; // A is a parameter.
    }
}
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何时不使用

¥When Not To Use It

如果你不想收到有关修改类声明变量的通知，你可以安全地禁用此规则。

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

版本

此规则是在 ESLint v1.0.0-rc-1 中引入。

资源

• 规则源码
• 测试源码