# Escaping

As we’ve seen, a backslash “\” is used to denote character classes. So it’s a special character.

There are other special characters as well, that have special meaning in a regexp. They are used to do more powerful searches.

Here’s a full list of them: [ \ ^ $. | ? * + ( ). se the \ character to escape a character that has special meaning inside a regular expression. To automate it, you could use this: # RegExp The RegExp constructor creates a regular expression object for matching text with a pattern. Syntax for the flags • g: global match; find all matches rather than stopping after the first match • i: ignore case; if u flag is also enabled, use Unicode case folding • m: multiline; treat beginning and end characters (^ and$) as working over multiple lines (i.e., match the beginning or end of each line (delimited by \n or \r), not only the very beginning or end of the whole input string)
• u: Unicode; treat pattern as a sequence of Unicode code points
• y: sticky; matches only from the index indicated by the lastIndex property of this regular expression in the target string (and does not attempt to match from any later indexes).