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noUndeclaredVariables

诊断类别：lint/correctness/noUndeclaredVariables

¥Diagnostic Category: lint/correctness/noUndeclaredVariables

自从：v1.0.0 来源：

¥Since: v1.0.0 Sources:

防止使用文档中未声明的变量。

¥Prevents the usage of variables that haven’t been declared inside the document.

如果你需要允许列出某些全局绑定，则可以使用 javascript.globals 配置。

¥If you need to allow-list some global bindings, you can use the javascript.globals configuration.

示例

Section titled 示例

¥Examples

无效

Section titled 无效

¥Invalid

foobar;
code-block.js:1:1 lint/correctness/noUndeclaredVariables ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ⚠ The foobar variable is undeclared.
  
  > 1 │ foobar;
      │ ^^^^^^
    2 │ 
  
  ℹ By default, Biome recognizes browser and Node.js globals.
    You can ignore more globals using the javascript.globals configuration.
  
// throw diagnostic for JavaScript files
PromiseLike;
code-block.js:2:1 lint/correctness/noUndeclaredVariables ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ⚠ The PromiseLike variable is undeclared.
  
    1 │ // throw diagnostic for JavaScript files
  > 2 │ PromiseLike;
      │ ^^^^^^^^^^^
    3 │ 
  
  ℹ By default, Biome recognizes browser and Node.js globals.
    You can ignore more globals using the javascript.globals configuration.

有效

Section titled 有效

¥Valid

type B<T> = PromiseLike<T>

相关链接

Section titled 相关链接

¥Related links