What are the modifiers of JavaScript regular expressions

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JavaScript regular expression modifier

Modifiers can be used for more global searches that are case-insensitive:

Modifier description

I perform case-insensitive matching.

G performs a global match (looking for all matches instead of stopping after the first match is found).

M performs multi-line matching.

Regular expression pattern

Parentheses are used to find a range of strings:

Expression description

[abc] looks for any character between square brackets.

[0-9] look for any number from 0 to 9.

(X | y) find any options separated by |.

Metacharacters (Metacharacter) are characters with a special meaning:

Metacharacter description

\ d look for numbers.

\ s look for white space characters.

\ b match word boundaries.

\ uxxxx looks for Unicode characters specified in the hexadecimal number xxxx.

Quantifiers defines quantifiers:

Quantifier description

N + matches any string that contains at least one n.

N * matches any string that contains zero or more ns.

N? Matches any string that contains zero or one n.

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