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How can I catch a 404?
...wishes to assume that it will always have that type, then it should simply cast: HttpWebResponse errorResponse = (HttpWebResponse)we.Response;. This will throw an explicit InvalidCastException if the impossible happens, instead of a mysterious NullReferenceException.
– John Sau...
How can I reverse a list in Python?
...y consumption though. reverse might be faster though, if you don't need to cast to list afterwards.
– Dakkaron
Aug 23 '16 at 14:01
5
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Add a new item to a dictionary in Python [duplicate]
... For Python 3, a quick fix to still use @Pakman comment is to cast the output of dict.items() in a list as follows: dict(list(default_data.items()) + list({'item3': 3}.items())), or even use the more idomatic: {**default_data, **{'item3': 3}}
– H. Rev.
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How to get the CPU Usage in C#?
...ollection = searcher.Get();
ManagementObject queryObj = collection.Cast<ManagementObject>().First();
return Convert.ToInt32(queryObj["PercentIdleTime"]);
}
catch (ManagementException e)
{
MessageBox.Show("An error occurred while querying for WMI data: " + e...
How do I use a Boolean in Python?
...ntegers 0 and 1, respectively. The built-in function bool() can be used to cast any value to a Boolean, if the value can be interpreted as a truth value (see section Truth Value Testing above).
They are written as False and True, respectively.
So in java code remove braces, change true to True and ...
Coalesce function for PHP?
... implicitly converted to a boolean. So make sure you brush up on your type casting rules
– DanMan
May 24 '14 at 11:48
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Convert hex string to int
...95). So you need Long to store it. After conversion to negative number and casting back to Integer, it will fit. There is no 8 character hex string, that wouldn't fit integer in the end.
share
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imp...
Split a String into an array in Swift?
...now auto-completes Foundation methods on Swift String objects without type casting to an NSString, which is not the case in Xcode 6.4 with Swift 1.2.
– Andrew
Jul 21 '15 at 22:31
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How to use HttpWebRequest (.NET) asynchronously?
...that doesn't over-scope the 'request' variable, but you could have made a cast instead of using "as" keyword. An InvalidCastException would be thrown instead of a confuse NullReferenceException
– Davi Fiamenghi
Jun 30 '12 at 20:38
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Insert a row to pandas dataframe
... as both objects are of the same type. Maybe the issue is that you need to cast your second vector to a dataframe? Using the df that you defined the following works for me:
df2 = pd.DataFrame([[2,3,4]], columns=['A','B','C'])
pd.concat([df2, df])
...