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EXPRESSION

JavaScript
Flags
x


 

/([A-Z])\w+/g



 * TEXT
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27 matches (0.3ms)

xxxxxxxxxx



 

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Roll-over elements below to highlight in the Expression above. Click to open in
Reference.
( Capturing group #1. Groups multiple tokens together and creates a capture
group for extracting a substring or using a backreference.
[ Character set. Match any character in the set.
A-Z Range. Matches a character in the range "A" to "Z" (char code 65 to 90).
Case sensitive.
]  
)  
\w Word. Matches any word character (alphanumeric & underscore).
+ Quantifier. Match 1 or more of the preceding token.


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Character classes .any character except newline \w\d\sword, digit, whitespace
\W\D\Snot word, digit, whitespace [abc]any of a, b, or c [^abc]not a, b, or c
[a-g]character between a & g Anchors ^abc$start / end of the string \b\Bword,
not-word boundary Escaped characters \.\*\\escaped special characters \t\n\rtab,
linefeed, carriage return Groups & Lookaround (abc)capture group \1backreference
to group #1 (?:abc)non-capturing group (?=abc)positive lookahead (?!abc)negative
lookahead Quantifiers & Alternation a*a+a?0 or more, 1 or more, 0 or 1
a{5}a{2,}exactly five, two or more a{1,3}between one & three a+?a{2,}?match as
few as possible ab|cdmatch ab or cd

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