RegExp Methods

(Deprecated) constructor Returns the function that created the RegExp prototype dotAll

flag is set in the expression (new in 2018) escape() Returns a string where characters that belongs to the regular expression syntax are escaped (new in 2025) exec() Returns a result array for a matches in a string flags

(new in 2015)

flag is set in the expression hasIndices

flag is set (new in 2022) ignoreCase

flag is set lastIndex Specifies the index at which to start the next match multiline

modifier is set source Returns the text of the RegExp pattern sticky

flag is set (new in 2015) test() Tests for a match in a string. Returns true or false toString() Returns the string value of the regular expression unicode

flag is set (new in 2018) unicodeSets

flag is set (new in 2023)

Returns an Iterator of results replace(regexp, s) Returns a new String replaceAll(regexp, s)

Returns the index of the first match split(regexp)