noConstructorReturn

诊断类别：lint/correctness/noConstructorReturn

¥Diagnostic Category: lint/correctness/noConstructorReturn

JavaScript (and super languages)

自从：v1.0.0

¥Since: v1.0.0

来源：

¥Sources:

与以下相同：no-constructor-return

¥Same as: no-constructor-return

禁止从 constructor 返回值。

¥Disallow returning a value from a constructor.

从类的 constructor 返回值可能是一个错误。禁止此模式可防止因不熟悉 JavaScript 或复制粘贴错误而导致的错误。

¥Returning a value from a constructor of a class is a possible error. Forbidding this pattern prevents errors resulting from unfamiliarity with JavaScript or a copy-paste 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 {
    constructor() {
        return 0;
    }
}

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

  ✖ The constructor should not return a value.
  
    1 │ class A {
    2 │     constructor() {
  > 3 │         return 0;
      │         ^^^^^^^^^
    4 │     }
    5 │ }
  
  ℹ The constructor is here:
  
    1 │ class A {
  > 2 │     constructor() {
      │     ^^^^^^^^^^^^^^^
  > 3 │         return 0;
  > 4 │     }
      │     ^
    5 │ }
    6 │ 
  
  ℹ Returning a value from a constructor is ignored.

有效

¥Valid

class A {
    constructor() {}
}

class B {
    constructor(x) {
        return;
    }
}

noConstructorReturn

示例

无效

有效

相关链接