noSetterReturn

诊断类别：lint/correctness/noSetterReturn

¥Diagnostic Category: lint/correctness/noSetterReturn

JavaScript (and super languages)

自从：v1.0.0

¥Since: v1.0.0

来源：

¥Sources:

与以下相同：no-setter-return

¥Same as: no-setter-return

禁止从 setter 返回值

¥Disallow returning a value from a setter

虽然从 setter 返回值不会产生错误，但返回的值将被忽略。因此，从 setter 返回值要么是不必要的，要么是可能的错误。

¥While returning a value from a setter does not produce an error, the returned value is being ignored. Therefore, returning a value from a setter is either unnecessary or a possible error.

仅允许返回没有值，因为它是控制流语句。

¥Only returning without a value is allowed, as it’s a control flow statement.

示例

¥Examples

无效

¥Invalid

class A {
    set foo(x) {
        return x;
    }
}

code-block.js:3:9 lint/correctness/noSetterReturn ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ✖ The setter should not return a value.
  
    1 │ class A {
    2 │     set foo(x) {
  > 3 │         return x;
      │         ^^^^^^^^^
    4 │     }
    5 │ }
  
  ℹ The setter is here:
  
    1 │ class A {
  > 2 │     set foo(x) {
      │     ^^^^^^^^^^^^
  > 3 │         return x;
  > 4 │     }
      │     ^
    5 │ }
    6 │ 
  
  ℹ Returning a value from a setter is ignored.

const b = {
    set foo(x) {
        return x;
    },
};

code-block.js:3:9 lint/correctness/noSetterReturn ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ✖ The setter should not return a value.
  
    1 │ const b = {
    2 │     set foo(x) {
  > 3 │         return x;
      │         ^^^^^^^^^
    4 │     },
    5 │ };
  
  ℹ The setter is here:
  
    1 │ const b = {
  > 2 │     set foo(x) {
      │     ^^^^^^^^^^^^
  > 3 │         return x;
  > 4 │     },
      │     ^
    5 │ };
    6 │ 
  
  ℹ Returning a value from a setter is ignored.

const c = {
    set foo(x) {
        if (x) {
            return x;
        }
    },
};

code-block.js:4:13 lint/correctness/noSetterReturn ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ✖ The setter should not return a value.
  
    2 │     set foo(x) {
    3 │         if (x) {
  > 4 │             return x;
      │             ^^^^^^^^^
    5 │         }
    6 │     },
  
  ℹ The setter is here:
  
    1 │ const c = {
  > 2 │     set foo(x) {
      │     ^^^^^^^^^^^^
  > 3 │         if (x) {
  > 4 │             return x;
  > 5 │         }
  > 6 │     },
      │     ^
    7 │ };
    8 │ 
  
  ℹ Returning a value from a setter is ignored.

有效

¥Valid

// early-return
class A {
    set foo(x) {
        if (x) {
            return;
        }
    }
}

// not a setter
class B {
  set(x) {
    return x;
  }
}

noSetterReturn

示例

无效

有效

相关链接