noWith

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/noWith

¥Diagnostic Category: lint/suspicious/noWith
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-with 相同
  
  ¥Same as no-with

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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        "noWith": "error"
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      }
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    }
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  }
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}

描述

¥Description

禁止在非严格上下文中使用 with 语句。

¥Disallow with statements in non-strict contexts.

with 语句可能会出现问题，因为它会将对象的成员添加到当前范围，从而无法判断块内的变量实际上指的是什么。

¥The with statement is potentially problematic because it adds members of an object to the current scope, making it impossible to tell what a variable inside the block actually refers to.

示例

¥Examples

无效

¥Invalid

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function f() {
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  with (point) {
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    r = Math.sqrt(x * x + y * y); // is r a member of point?
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  }
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}

code-block.cjs:2:3 lint/suspicious/noWith ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ✖ Unexpected use of with statement.
  
    1 │ function f() {
  > 2 │   with (point) {
      │   ^^^^^^^^^^^^^^
  > 3 │     r = Math.sqrt(x * x + y * y); // is r a member of point?
  > 4 │   }
      │   ^
    5 │ }
    6 │ 
  
  ℹ The with statement is potentially problematic because it adds members of an object to the current
    scope, making it impossible to tell what a variable inside the block actually refers to.

noWith

摘要

如何配置

描述

示例

无效

相关链接