noGlobalIsFinite

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/noGlobalIsFinite

¥Diagnostic Category: lint/suspicious/noGlobalIsFinite
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 unsafe 修复程序。

¥This rule has an unsafe 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

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

描述

¥Description

使用 Number.isFinite 而不是全局 isFinite。

¥Use Number.isFinite instead of global isFinite.

Number.isFinite() 和 isFinite() 没有相同的行为。当 isFinite() 的参数不是数字时，首先将值强制转换为数字。Number.isFinite() 不执行此强制。因此，这是一种更可靠的方法来测试数字是否有限。

¥Number.isFinite() and isFinite() do not have the same behavior. When the argument to isFinite() is not a number, the value is first coerced to a number. Number.isFinite() does not perform this coercion. Therefore, it is a more reliable way to test whether a number is finite.

示例

¥Examples

无效

¥Invalid

1
isFinite(false); // true

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

  ⚠ isFinite is unsafe. It attempts a type coercion. Use Number.isFinite instead.
  
  > 1 │ isFinite(false); // true
      │ ^^^^^^^^
    2 │ 
  
  ℹ See the MDN documentation for more details.
  
  ℹ Unsafe fix: Use Number.isFinite instead.
  
    1   │ - isFinite(false);·//·true
      1 │ + Number.isFinite(false);·//·true
    2 2 │

有效

¥Valid

1
Number.isFinite(false); // false

noGlobalIsFinite

摘要

如何配置

描述

示例

无效

有效

相关链接