noFallthroughSwitchClause

JavaScript (and super languages)

摘要

¥Summary

规则生效日期：v1.0.0

¥Rule available since: v1.0.0
诊断类别：lint/suspicious/noFallthroughSwitchClause

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

¥This rule is recommended, which means is enabled by default.
此规则没有修复方案。

¥This rule doesn’t have a fix.
此规则的默认严重级别为 error。

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

¥Sources:
- 与 no-fallthrough 相同
  
  ¥Same as no-fallthrough

如何配置

¥How to configure

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{
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  "linter": {
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    "rules": {
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      "suspicious": {
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        "noFallthroughSwitchClause": "error"
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      }
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    }
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  }
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}

描述

¥Description

禁止 switch 子句的 fallthrough。

¥Disallow fallthrough of switch clauses.

switch 语句中的 Switch 子句默认失败。如果忘记，这可能会导致意外行为。

¥Switch clauses in switch statements fall through by default. This can lead to unexpected behavior when forgotten.

该规则不考虑 process.exit()。

¥The rule doesn’t take process.exit() in consideration.

示例

¥Examples

无效

¥Invalid

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switch (bar) {
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  case 0:
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    a();
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  case 1:
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    b();
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}

code-block.js:2:2 lint/suspicious/noFallthroughSwitchClause ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ✖ This case is falling through to the next case.
  
    1 │ switch (bar) {
  > 2 │ 	case 0:
      │ 	^^^^^^^
  > 3 │ 		a();
      │ 		^^^^
    4 │ 	case 1:
    5 │ 		b();
  
  ℹ Add a `break` or `return` statement to the end of this case to prevent fallthrough.

有效

¥Valid

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switch (foo) {
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  case 1:
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    case 2:
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    doSomething();
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    break;
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    case 3: {
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        if (cond) {
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            break;
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        } else {
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            break;
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        }
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    }
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  case 4:
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    doSomething();
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}

noFallthroughSwitchClause

摘要

如何配置

描述

示例

无效

有效

相关链接