Need a Regular expresssion that should not allow only space in string, It can allow spaces along with characters

Need a Regular expresssion that should not allow only space in str开发者_开发百科ing, It can allow spaces along with characters.

e.g: space+char+space is allowed where as only space is not allowed

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/\S/ is sufficient to match a non-empty string.

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Try this:

/^\s+$\

Any string that matches the above expression is invalid as per your criteria.

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Maybe it's easier and faster to test the emptiness of the string after using trim() on it.

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If you're just looking for a positive match:

/\S/

If you want to capture:

/(.*\S.*)/

EDIT:

Actually, if you meant a literal space:

/[ ]/

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You simply have to enforce a non-space character appearing at least once:

\s*\S+\s*