useRegexLiterals
¥Summary
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规则生效日期：
v1.3.0¥Rule available since:
v1.3.0 -
诊断类别：
lint/complexity/useRegexLiterals¥Diagnostic Category:
lint/complexity/useRegexLiterals -
此规则为推荐规则，默认启用。
¥This rule is recommended, which means is enabled by default.
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此规则包含 safe 修复程序。
¥This rule has a safe fix.
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此规则的默认严重级别为 warning。
¥The default severity of this rule is warning.
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来源：
¥Sources:
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¥Same as
prefer-regex-literals
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¥How to configure
{ "linter": { "rules": { "complexity": { "useRegexLiterals": "error" } } }}¥Description
如果可能，强制使用正则表达式文字而不是 RegExp 构造函数。
¥Enforce the use of the regular expression literals instead of the RegExp constructor if possible.
有两种创建正则表达式的方法：
¥There are two ways to create a regular expression:
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正则表达式文字，例如
/abc/u。¥Regular expression literals, e.g.,
/abc/u. -
RegExp 构造函数，例如
new RegExp("abc", "u")。¥The RegExp constructor function, e.g.,
new RegExp("abc", "u").
当你想要动态生成模式时，构造函数特别有用，因为它需要字符串参数。
¥The constructor function is particularly useful when you want to dynamically generate the pattern, because it takes string arguments.
使用正则表达式文字可以避免字符串文字中所需的一些转义，并且更容易进行静态分析。
¥Using regular expression literals avoids some escaping required in a string literal, and are easier to analyze statically.
¥Examples
¥Invalid
new RegExp("abc", "u");code-block.js:1:1 lint/complexity/useRegexLiterals FIXABLE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ Use a regular expression literal instead of the RegExp constructor.
> 1 │ new RegExp(“abc”, “u”);
│ ^^^^^^^^^^^^^^^^^^^^^^
2 │
ℹ Regular expression literals avoid some escaping required in a string literal, and are easier to analyze statically.
ℹ Safe fix: Use a literal notation instead.
1 │ - new·RegExp(“abc”,·“u”);
1 │ + /abc/u;
2 2 │
¥Valid
/abc/u;
new RegExp("abc", flags);¥Related links
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