an attribute whose value is in double quotes
Matches an attribute whose value is in double quotes. It finds the match anywhere inside the text. There are 2 capture groups.
Pattern
/(\w+)="([^"]*)"/- Match scope
- anywhere inside the text
- Capture groups
- 2
- What it catches in the first example
- src="a.png"
Try it yourself
Type any text and the parts this expression catches are highlighted. It runs in your browser and is never sent anywhere.
src="a.png"
a b="c"
2 matches
Examples that match
- src="a.png"
- a b="c"
Examples that do not match
- src=a.png
- plain
Other expressions in this group
\[([^\]]*)\]what sits inside square brackets\(([^)]*)\)what sits inside round brackets[\uD800-\uDBFF][\uDC00-\uDFFF]an emoji that takes two code units(.)\1{2,}the same character three times or more,\s*([}\]])a comma left before a closing bracket\*\*([^*]+)\*\*bold text wrapped in double asterisks`([^`]+)`code wrapped in backticks\x1b\[[0-9;]*ma terminal colour escape codeHow to read this
- With ^ and $ around it, the whole string must match; without them the match can sit anywhere. Always anchor an expression you use for validation.
- Round brackets ( ) capture what they wrap. When you only need grouping, write (?: ) so the numbering of later groups does not shift.
- Every expression here is checked against its examples. Even so, "looks like an email" and "is a real inbox" remain different questions.
- Nested open-ended repeats such as (a+)+ can blow up on certain inputs. Look for that shape before pasting someone else’s expression into your code.
Frequently asked questions
Q. What is the regex for an attribute whose value is in double quotes?
(\w+)="([^"]*)".
Q. Which strings match?
Text like src="a.png" matches; text like src=a.png does not.
Q. Does the whole string have to match?
No. It finds the part anywhere inside the text. Add ^ and $ around it if you want a whole-string check.
Q. How do I use what it caught?
There are 2 capture groups, so you can read them from match[1] onwards.