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Rslint

    no-setter-return

    Configuration

    PresetConfigured Value
    ✅ js.configs.recommended"error"
    rslint.config.ts
    import { defineConfig, js } from '@rslint/core';

export default defineConfig([
  js.configs.recommended,
  {
    rules: {
      'no-setter-return': 'error',
    },
  },
]);

    Rule Details

    Disallows returning a value from a setter. Setters cannot meaningfully return values since any return value is silently ignored by the JavaScript engine. A bare return; (without a value) is allowed for control flow purposes.

    Examples of incorrect code for this rule:

    var foo = {
  set a(val) {
    return 1;
  },
};

class A {
  set a(val) {
    return val;
  }
}

var bar = {
  set a(val) {
    return undefined;
  },
};

    Examples of correct code for this rule:

    var foo = {
  set a(val) {
    val = 1;
  },
};

class A {
  set a(val) {
    if (!val) {
      return; // bare return for flow control is fine
    }
    this._a = val;
  }
}

class B {
  get a() {
    return this._a; // getters can return values
  }
}

    Original Documentation