Escape de Regex

Escape caracteres especiais de regex para corresponder a eles literalmente. Também lida com escape de strings de substituição.

Text to Escape

Escaped for Regex Pattern

Escaped for Replacement String

For replacement strings, only $ needs escaping (as $$)

Special Regex Characters

.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 character

Regex Special Characters - Detalhes Técnicos

Special regex characters like . * + ? ^ $ { } ( ) | [ ] \\ have special meanings. To match them literally, prefix with a backslash. For replacement strings, $ needs to be escaped as $$.

Alternativa via Linha de Comando

// JavaScript regex escape function
function escapeRegex(str) {
  return str.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
}

Referência

Ver Especificação Oficial