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Append column to pandas dataframe
...p the different data columns, which is almost certainly not what you want. String data would be concatenated.
– U2EF1
Dec 16 '13 at 22:13
1
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What does LINQ return when the results are empty
... the following ToList() will throw an exception or just a empty List<string> if nothing found in IEnumerable result?
...
How to convert floats to human-readable fractions?
....com/ShowCode.asp?ID=582):
Public Function Dec2Frac(ByVal f As Double) As String
Dim df As Double
Dim lUpperPart As Long
Dim lLowerPart As Long
lUpperPart = 1
lLowerPart = 1
df = lUpperPart / lLowerPart
While (df <> f)
If (df < f) Then
lUpperPart = lU...
Are PHP short tags acceptable to use?
...xing PHP and XML anyway; and if you are, you should be using PHP to output strings of text. Security should never be an issue, because if you're putting sensitive information like database access credentials inside of template files, well then, you've got bigger issues!
Now then, as to the issue of...
What is the correct value for the disabled attribute?
...lse value.
If the attribute is present, its value must either be the empty string or a value that is an ASCII case-insensitive match for the attribute's canonical name, with no leading or trailing whitespace.
Conclusion:
The following are valid, equivalent and true:
<input type="text" disabled /...
What does the construct x = x || y mean?
... after the || (as far as i remember):
undefined
false
0
'' (Null or Null string)
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How to Turn Off Showing Whitespace Characters in Visual Studio IDE
...onment. There are also cases where it's actually critical, such as inside strings that are getting parsed.
– Thought
Jul 6 '14 at 23:30
3
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How can I tell PyCharm what type a parameter is expected to be?
...tracts types from @param style comments.
See also reStructuredText and docstring conventions (PEP 257).
Another option is Python 3 annotations.
Please refer to the PyCharm documentation section for more details and samples.
...
Spring @Autowired usage
...If you need to inject the same bean in multiple places, I've seen the same string name repeated all over. To me this seems to have the potential for errors.
I've started using auto-wiring almost exclusively at work because we depend so much on Spring integration anyway that the dependency issue is...
What is the use of “assert” in Python?
...gt;>> assert 2 > 5
Traceback (most recent call last):
File "<string>", line 1, in <fragment>
builtins.AssertionError:
The first statement does nothing, while the second raises an exception. This is the first hint: asserts are useful to check conditions that should be true in...