Matches the preceding pattern at least n times. Matches the preceding pattern zero or one occurrence. Matches the preceding pattern one or more occurrences. Matches the preceding pattern zero or more occurrences. Matches one collation element that can be more than one character. Matches the nth subexpression found within ( ) before encountering \n. Matches at least m times, but no more than n times. Used to group expressions as a subexpression. Used to specify a nonmatching list where you are trying to match any character except for the ones in the list. Used to specify a matching list where you are trying to match any one of the characters in the list. Used like an "OR" to specify more than one alternative. If used with a match_parameter of 'm', it matches the end of a line anywhere within expression. If used with a match_parameter of 'm', it matches the start of a line anywhere within expression.
As a RegExp object, it can be a combination of the following: Value It is either a string value or a RegExp object that will be searched for in string. In JavaScript, the syntax for the search() method is: arch(search_expression) Parameters or Arguments search_expression
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