Skip to content
Biome 中文网
开发文档 当前版本 v1.9

useShorthandArrayType

诊断类别：lint/style/useShorthandArrayType

¥Diagnostic Category: lint/style/useShorthandArrayType

自从：v1.0.0

¥Since: v1.0.0

在表达数组类型时，此规则提倡使用 T[] 简写而不是 Array<T>。

¥When expressing array types, this rule promotes the usage of T[] shorthand instead of Array<T>.

示例

Section titled 示例

¥Examples

无效

Section titled 无效

¥Invalid

let invalid: Array<foo>;
code-block.ts:1:14 lint/style/useShorthandArrayType  FIXABLE  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ⚠ Use shorthand T[] syntax instead of Array<T> syntax.
  
  > 1 │ let invalid: Array<foo>;
      │              ^^^^^^^^^^
    2 │ 
  
  ℹ Unsafe fix: Use shorthand T[] syntax to replace
  
    1   │ - let·invalid:·Array<foo>;
      1 │ + let·invalid:·foo[];
    2 2 │   
  
let invalid: Promise<Array<string>>;
code-block.ts:1:22 lint/style/useShorthandArrayType  FIXABLE  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ⚠ Use shorthand T[] syntax instead of Array<T> syntax.
  
  > 1 │ let invalid: Promise<Array<string>>;
      │                      ^^^^^^^^^^^^^
    2 │ 
  
  ℹ Unsafe fix: Use shorthand T[] syntax to replace
  
    1   │ - let·invalid:·Promise<Array<string>>;
      1 │ + let·invalid:·Promise<string[]>;
    2 2 │   
  
let invalid: Array<Foo<Bar>>;
code-block.ts:1:14 lint/style/useShorthandArrayType  FIXABLE  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ⚠ Use shorthand T[] syntax instead of Array<T> syntax.
  
  > 1 │ let invalid: Array<Foo<Bar>>;
      │              ^^^^^^^^^^^^^^^
    2 │ 
  
  ℹ Unsafe fix: Use shorthand T[] syntax to replace
  
    1   │ - let·invalid:·Array<Foo<Bar>>;
      1 │ + let·invalid:·Foo<Bar>[];
    2 2 │   
  
let invalid: Array<[number, number]>;
code-block.ts:1:14 lint/style/useShorthandArrayType  FIXABLE  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ⚠ Use shorthand T[] syntax instead of Array<T> syntax.
  
  > 1 │ let invalid: Array<[number, number]>;
      │              ^^^^^^^^^^^^^^^^^^^^^^^
    2 │ 
  
  ℹ Unsafe fix: Use shorthand T[] syntax to replace
  
    1   │ - let·invalid:·Array<[number,·number]>;
      1 │ + let·invalid:·[number,·number][];
    2 2 │   
  
let invalid: Array<[number, number]>;
code-block.ts:1:14 lint/style/useShorthandArrayType  FIXABLE  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ⚠ Use shorthand T[] syntax instead of Array<T> syntax.
  
  > 1 │ let invalid: Array<[number, number]>;
      │              ^^^^^^^^^^^^^^^^^^^^^^^
    2 │ 
  
  ℹ Unsafe fix: Use shorthand T[] syntax to replace
  
    1   │ - let·invalid:·Array<[number,·number]>;
      1 │ + let·invalid:·[number,·number][];
    2 2 │   
  
let invalid: ReadonlyArray<string>;
code-block.ts:1:14 lint/style/useShorthandArrayType  FIXABLE  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ⚠ Use shorthand readonly T[] syntax instead of ReadonlyArray<T> syntax.
  
  > 1 │ let invalid: ReadonlyArray<string>;
      │              ^^^^^^^^^^^^^^^^^^^^^
    2 │ 
  
  ℹ Unsafe fix: Use shorthand readonly T[] syntax to replace
  
    1   │ - let·invalid:·ReadonlyArray<string>;
      1 │ + let·invalid:·readonly·string[];
    2 2 │

有效

Section titled 有效

¥Valid

let valid: Array<Foo | Bar>;
let valid: Array<keyof Bar>;
let valid: Array<foo | bar>;

相关链接

Section titled 相关链接

¥Related links