Looking for a regexp which match with characters starting by an uppercase and finish by lowercase or a number For example :
Foo2B => Foo, 2, B
I find ^([A-Z][a-z]*|[0-9]*) but it return Foo, 2B
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1Do you mean like this? `[A-Z][a-z]*|\d+` https://regex101.com/r/V9ksrw/1 – The fourth bird Aug 27 '20 at 16:18
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The current problem is misunderstanding of what `^` does. Do not use it like this if you do not want to only match at the start of the string. – Wiktor Stribiżew Aug 27 '20 at 18:59
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The | character means "OR", so your regex is actually matching two different things - either [A-Z][a-z]* OR [0-9]* at the beginning of a string.
What you're looking for is this: ^[A-Z][a-z0-9]*. This matches a leading uppercase letter, followed by a lowercase letter or number repeated zero or more times.
Kryten
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The regexp was OK I didn't used it well in JavaScript that's why I though the regexp was wrong.
For information
'Foo2B'.split(/([A-Z][a-z]*|[0-9]*)/).filter((elem) => elem !== '')
Jorgen Timarey
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1Never use `.split()` if you mean `.match()`. When extracting text, use `match` or `matchAll`. Use `'Foo2B'.match(/[A-Z][a-z]*|[0-9]+/g)` – Wiktor Stribiżew Aug 27 '20 at 18:57