useRegexLiterals
诊断类别：lint/complexity/useRegexLiterals
¥Diagnostic Category: lint/complexity/useRegexLiterals
自从：v1.3.0
¥Since: v1.3.0
来源：
¥Sources:
-
与以下相同：
prefer-regex-literals¥Same as:
prefer-regex-literals
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:
-
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