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How to check if a column exists in a SQL Server table?
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@Bill - Less readable in what way? Looks fine in Firefox. This answer was posted more than 2 years later than the accepted one, which explains the rating IMO. If you meant less clear that it is an existence check this type of idiom is quite common in...
Best practices/performance: mixing StringBuilder.append with String.concat
I'm trying to understand what the best practice is and why for concatenating string literals and variables for different cases. For instance, if I have code like this
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How do you match only valid roman numerals with a regular expression?
...ite their seeming weirdness, follow some logical rules once you figure out what they are):
0: <empty> matched by V?I{0} (with V not there)
1: I matched by V?I{1} (with V not there)
2: II matched by V?I{2} (with V not there)
3: III matched by V?I{3} (with V not there)
4: IV ...
In Windows cmd, how do I prompt for user input and use the result in another command?
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No need for the quotes. What @Instantsoup was missing was the '%id%` in the line jstack %id% > jstack.txt
– pashute
Mar 14 '18 at 18:43
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Add one row to pandas DataFrame
...rame but I need to create an empty DataFrame then add rows, one by one .
What is the best way to do this ?
27 Answers
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Efficient way to remove ALL whitespace from String?
... For those new to RegEx and looking for an explanation as to what this expression means, \s means "match any whitespace token", and + means "match one or more of the proceeding token". Also RegExr is a nice website to practice writing RegEx expressions with, if you want to experiment....
Why use String.Format? [duplicate]
....... /*can't even be bothered to type it*/)
String Template Persistence
What if I want to store string templates in the database? With string formatting:
_id _translation
1 Welcome {0} to {1}. Today is {2}.
2 You have {0} products in your basket.
3 Thank-y...
twitter-bootstrap vs jquery-mobile [closed]
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Isn't that what it says?
– Josh Mouch
Sep 5 '13 at 16:41
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What's the difference between SoftReference and WeakReference in Java?
What's the difference between java.lang.ref.WeakReference and java.lang.ref.SoftReference ?
12 Answers
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How to set the authorization header using curl
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@Vixed This question is explicitly not about PHP. [What's wrong with Google's results](s)?
– Oli
Apr 8 '16 at 14:16
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