useThrowNewError

JavaScript (and super languages)

摘要

¥Summary

规则生效日期：v1.8.0

¥Rule available since: v1.8.0
诊断类别：lint/style/useThrowNewError

¥Diagnostic Category: lint/style/useThrowNewError
此规则包含 unsafe 修复程序。

¥This rule has an unsafe fix.
此规则的默认严重级别为 information。

¥The default severity of this rule is information.
来源：

¥Sources:
- 与 unicorn/throw-new-error 相同
  
  ¥Same as unicorn/throw-new-error

如何配置

¥How to configure

1
{
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  "linter": {
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    "rules": {
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      "style": {
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        "useThrowNewError": "error"
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      }
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    }
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  }
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}

描述

¥Description

抛出错误时需要 new。

¥Require new when throwing an error.

虽然可以在不使用 new 关键字的情况下实例化 Error，但最好保持一致：现代内置函数需要实例化 new。

¥While it’s possible to instantiate Error without using the new keyword, it’s better to be consistent: modern builtins require new to be instantiated.

当规则名称以单词 “错误” 结尾且第一个字符为大写时，规则会匹配错误。

¥Rule matches errors when their name ends with the word “Error” and the first character is uppercase.

示例

¥Examples

无效

¥Invalid

1
throw Error();

code-block.js:1:7 lint/style/useThrowNewError  FIXABLE  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ℹ Use new Error() instead of Error() when throwing an error.
  
  > 1 │ throw Error();
      │       ^^^^^^^
    2 │ 
  
  ℹ Instantiate Error with new keyword for consistency with modern builtins.
  
  ℹ Unsafe fix: Add new keyword.
  
    1 │ throw·new·Error();
      │       ++++

1
throw TypeError('biome');

code-block.js:1:7 lint/style/useThrowNewError  FIXABLE  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ℹ Use new TypeError() instead of TypeError() when throwing an error.
  
  > 1 │ throw TypeError(‘biome’);
      │       ^^^^^^^^^^^^^^^^^^
    2 │ 
  
  ℹ Instantiate Error with new keyword for consistency with modern builtins.
  
  ℹ Unsafe fix: Add new keyword.
  
    1 │ throw·new·TypeError(‘biome’);
      │       ++++

1
throw lib.TypeError();

code-block.js:1:7 lint/style/useThrowNewError  FIXABLE  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ℹ Use new TypeError() instead of TypeError() when throwing an error.
  
  > 1 │ throw lib.TypeError();
      │       ^^^^^^^^^^^^^^^
    2 │ 
  
  ℹ Instantiate Error with new keyword for consistency with modern builtins.
  
  ℹ Unsafe fix: Add new keyword.
  
    1 │ throw·new·lib.TypeError();
      │       ++++

有效

¥Valid

1
throw new Error();

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throw new TypeError('biome');

1
throw new lib.TypeError();

useThrowNewError

摘要

如何配置

描述

示例

无效

有效

相关链接