Number regex pattern
Copy and test a JavaScript regex for numbers, with examples and a one-click link to the regex tester.
Number regex pattern
Validate whole value
Use anchors to check whether the complete value matches.
Regex: ^[+-]?(?:\d+(?:\.\d+)?|\.\d+)$
Flags: -
Search in text
Find matching fragments inside a larger block of text.
Regex: [+-]?(?:\d+(?:\.\d+)?|\.\d+)
Flags: g
Examples that match
42-17.5
Examples that do not match
twelve4.2.1
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