noUselessEscapeInString

CSS
JavaScript (and super languages)

摘要

¥Summary

规则生效日期：v2.0.0

¥Rule available since: v2.0.0
诊断类别：lint/suspicious/noUselessEscapeInString

¥Diagnostic Category: lint/suspicious/noUselessEscapeInString
此规则为推荐规则，默认启用。

¥This rule is recommended, which means is enabled by default.
此规则包含 safe 修复程序。

¥This rule has a safe fix.
此规则的默认严重级别为 warning。

¥The default severity of this rule is warning.

如何配置

¥How to configure

1
{
2
  "linter": {
3
    "rules": {
4
      "suspicious": {
5
        "noUselessEscapeInString": "error"
6
      }
7
    }
8
  }
9
}

描述

¥Description

禁止在字符串字面量中使用不必要的转义。

¥Disallow unnecessary escapes in string literals.

转义字符串字面量中的非特殊字符没有任何效果。因此，它们可能会让读者感到困惑。

¥Escaping non-special characters in string literals doesn’t have any effect. Hence, they may confuse a reader.

示例

¥Examples

无效

¥Invalid

1
a::after {
2
  content: "\a"
3
}

code-block.css:2:14 lint/suspicious/noUselessEscapeInString  FIXABLE  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ⚠ The character doesn’t need to be escaped.
  
    1 │ a::after {
  > 2 │   content: “\a”
      │              ^
    3 │ }
    4 │ 
  
  ℹ Only quotes that enclose the string and special characters need to be escaped.
  
  ℹ Safe fix: Unescape the character.
  
    2 │ ··content:·“\a”
      │             -

1
a::after {
2
  content: "\'"
3
}

code-block.css:2:14 lint/suspicious/noUselessEscapeInString  FIXABLE  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ⚠ The character doesn’t need to be escaped.
  
    1 │ a::after {
  > 2 │   content: ”\’”
      │              ^
    3 │ }
    4 │ 
  
  ℹ Only quotes that enclose the string and special characters need to be escaped.
  
  ℹ Safe fix: Unescape the character.
  
    2 │ ··content:·”\’”
      │             -

有效

¥Valid

1
a::after {
2
  content: "\""
3
}

1
a::after {
2
  content: "\n"
3
}

摘要

¥Summary

规则生效日期：v2.0.0

¥Rule available since: v2.0.0
诊断类别：lint/suspicious/noUselessEscapeInString

¥Diagnostic Category: lint/suspicious/noUselessEscapeInString
此规则为推荐规则，默认启用。

¥This rule is recommended, which means is enabled by default.
此规则包含 safe 修复程序。

¥This rule has a safe fix.
此规则的默认严重级别为 warning。

¥The default severity of this rule is warning.

如何配置

¥How to configure

1
{
2
  "linter": {
3
    "rules": {
4
      "suspicious": {
5
        "noUselessEscapeInString": "error"
6
      }
7
    }
8
  }
9
}

描述

¥Description

禁止在字符串字面量中使用不必要的转义。

¥Disallow unnecessary escapes in string literals.

转义字符串字面量中的非特殊字符没有任何效果。因此，它们可能会让读者感到困惑。

¥Escaping non-special characters in string literals doesn’t have any effect. Hence, they may confuse a reader.

示例

¥Examples

无效

¥Invalid

1
const s = "\a";

code-block.js:1:13 lint/suspicious/noUselessEscapeInString  FIXABLE  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ⚠ The character doesn’t need to be escaped.
  
  > 1 │ const s = “\a”;
      │             ^
    2 │ 
  
  ℹ Only quotes that enclose the string and special characters need to be escaped.
  
  ℹ Safe fix: Unescape the character.
  
    1 │ const·s·=·“\a”;
      │            -

1
const o = {
2
    "\a": 0,
3
};

code-block.js:2:7 lint/suspicious/noUselessEscapeInString  FIXABLE  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ⚠ The character doesn’t need to be escaped.
  
    1 │ const o = {
  > 2 │     “\a”: 0,
      │       ^
    3 │ };
    4 │ 
  
  ℹ Only quotes that enclose the string and special characters need to be escaped.
  
  ℹ Safe fix: Unescape the character.
  
    2 │ ····“\a”:·0,
      │      -

1
const s = `${0}\a`;

code-block.js:1:17 lint/suspicious/noUselessEscapeInString  FIXABLE  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ⚠ The character doesn’t need to be escaped.
  
  > 1 │ const s = `${0}\a`;
      │                 ^
    2 │ 
  
  ℹ Only quotes that enclose the string and special characters need to be escaped.
  
  ℹ Safe fix: Unescape the character.
  
    1 │ const·s·=·`${0}\a`;
      │                -

有效

¥Valid

1
const s = "\n";

在模板字面量中，\${ 和 $\{ 都是有效的转义符：

¥In template literals, \${ and $\{ are valid escapes:

1
const s = `\${0}`;

已标记的字符串模板将被忽略：

¥Tagged string templates are ignored:

1
const s = tagged`\a`;

JSX 字符串将被忽略：

¥JSX strings are ignored:

1
<div attr="str\a"/>;

noUselessEscapeInString

摘要

如何配置

描述

示例

无效

有效

相关链接

摘要

如何配置

描述

示例

无效

有效

相关链接