Regex 转义
转义特殊 regex 字符以字面匹配它们。也处理替换字符串的转义。
For replacement strings, only $ needs escaping (as $$)
.Any character*0 or more+1 or more?0 or 1^Start of string$End of string{Quantifier start}Quantifier end(Group start)Group end[Class start]Class end|Alternation\Escape characterRegex Special Characters - 技术详情
Special regex characters like . * + ? ^ $ { } ( ) | [ ] \\ have special meanings. To match them literally, prefix with a backslash. For replacement strings, $ needs to be escaped as $$.
命令行替代方案
// JavaScript regex escape function
function escapeRegex(str) {
return str.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
}