prefer-regex-literals
禁止使用 RegExp
构造函数来支持正则表达式字面
创建正则表达式有两种方法:
- 正则表达式字面,例如
/abc/u
。 RegExp
构造函数,例如new RegExp("abc", "u")
或RegExp("abc", "u")
。
当您想要动态生成模式时,构造函数特别有用,因为它接受字符串参数。
当使用带有字符串字面的构造函数时,不要忘记字符串转义规则仍然适用。如果要在模式中放置反斜杠,则需要在字符串字面中对其进行转义。因此,以下是等价的:
new RegExp("^\\d\\.$");
/^\d\.$/;
// matches "0.", "1.", "2." ... "9."
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new RegExp("^\d\.$");
// equivalent to /^d.$/, matches "d1", "d2", "da", "db" ...
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规则详情
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1vZ/vWaNXA7ibabtFQUNMO6piKvvSf0shthWFnVzD+kyLKPNr8d5shlI5ikCF8bAqE0I0voEuNIZmjFcJ1NIO8Vcorv0SF/9K4peZG5/xb6++mfJkeH076xnousLyaLqu+cw/EQG5gFB+wJJaQ8XZtiRt/hUbHRnj8K9v7Kem6E=
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/*eslint prefer-regex-literals: "error"*/
new RegExp("abc");
new RegExp("abc", "u");
RegExp("abc");
RegExp("abc", "u");
new RegExp("\\d\\d\\.\\d\\d\\.\\d\\d\\d\\d");
RegExp(`^\\d\\.
prefer-regex-literals - ESLint 中文文档
);
new RegExp(String.raw`^\d\.
prefer-regex-literals - ESLint 中文文档
);
h+1Jf/rEEE6yYiKhWnK/aHl9/UYIfowckm44qhmqvwwaWj0QX+JXnab7YJgxSmDw
/*eslint prefer-regex-literals: "error"*/
/abc/;
/abc/u;
/\d\d\.\d\d\.\d\d\d\d/;
/^\d\.$/;
// RegExp constructor is allowed for dynamically generated regular expressions
new RegExp(pattern);
RegExp("abc", flags);
new RegExp(prefix + "abc");
RegExp(`${prefix}abc`);
new RegExp(String.raw`^\d\. ${suffix}`);
选项
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- u46irZn0yKmdPBabuT9gn8QZsEVXcbs5Lthxm40NbfxoyazGgLpQEpEKS/wjikmanzcrq5djUiNpltua82tsIIA8vdGqBHbJAmwgN6aHDdP3+zuq2bVpHdjVlNTWHNse5p51/pDo9f3CzaditxJgEuE1fO8KvlrWRxVRzPJ7huS2Cb9D7WBJact8Treo67nBw3R+3qL+Tz2/8dfP0Lkjd26M3FvrwalD6S6wpJW1XUc=
disallowRedundantWrapping
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DKbpS7Wi/bhq695Y73gj2MMPrWae22LspWoiKtm0DLg7W02XCL1aK9AA0GDe60CrUD59/HFGPle8qccHzGu7LwX7vOReFMsUpeDnD4QcvHyYwou3BdKTOjolEQK+aj8c
/*eslint prefer-regex-literals: ["error", {"disallowRedundantWrapping": true}]*/
new RegExp(/abc/);
new RegExp(/abc/, 'u');
DKbpS7Wi/bhq695Y73gj2MMPrWae22LspWoiKtm0DLg7W02XCL1aK9AA0GDe60CrXmHnXomBDJoY7L4cOlAziZ3RiLxv8oQO0BvZPxD6m7dng66Sz0PrjUL+zBWbXO/J
/*eslint prefer-regex-literals: ["error", {"disallowRedundantWrapping": true}]*/
/abc/;
/abc/u;
new RegExp(/abc/, flags);