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Better way to check variable for null or empty string?
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10 Answers
10
Active
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Difference between pre-increment and post-increment in a loop?
..., returns the new value.
C#:
string[] items = {"a","b","c","d"};
int i = 0;
foreach (string item in items)
{
Console.WriteLine(++i);
}
Console.WriteLine("");
i = 0;
foreach (string item in items)
{
Console.WriteLine(i++);
}
Output:
1
2
3
4
0
1
2
3
foreach and while loops depend on w...
How can I String.Format a TimeSpan object with a custom format in .NET?
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250
Please note: this answer is for .Net 4.0 and above. If you want to format a TimeSpan in .Net 3....
Read a zipped file as a pandas DataFrame
...long form:
df = pd.read_csv('filename.zip', compression='zip', header=0, sep=',', quotechar='"')
Description of the compression argument from the docs:
compression : {‘infer’, ‘gzip’, ‘bz2’, ‘zip’, ‘xz’, None}, default ‘infer’
For on-the-fly decompression of on-d...
Using grep to search for a string that has a dot in it
I am trying to search for a string 0.49 (with dot) using the command
9 Answers
9
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Cross Browser Flash Detection in Javascript
...ng embedded flash content. I say reliably because I know its not possible 100% of the time.
16 Answers
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Large Numbers in Java
...a.math package.
Example:
BigInteger reallyBig = new BigInteger("1234567890123456890");
BigInteger notSoBig = new BigInteger("2743561234");
reallyBig = reallyBig.add(notSoBig);
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Formatting “yesterday's” date in python
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406
Use datetime.timedelta()
>>> from datetime import date, timedelta
>>> yester...
error: ‘NULL’ was not declared in this scope
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answered Jan 20 '09 at 17:14
Johannes Schaub - litbJohannes Schaub - litb
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