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Get to UIViewController from UIView?
...API features. Many I have referred to sacrifice good or scalable design in order to provide a concise demonstration of the topic. It took me a long time to realise this and while it makes sense, I find it unfortunate. I think a lot of developers take these pragmatic projects as Apple's guide to best...
Accessing members of items in a JSONArray with Java
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how I can do this for php?
– Hanie Asemi
May 28 '17 at 12:47
How ...
How unique is UUID?
...ely generate a batch of 16,384 UUIDs within the span of a single "tick" in order to overflow the sequence number. I have seen this happen with an implementation that relied, naively, on a clock source that (1) had μs-level granularity, and (2) was not guaranteed to be monotonic (system clocks are ...
How do arrays in C# partially implement IList?
...that!" and issues an error. It needs an explicit cast to IList<T> in order to work.
– Tobias Knauss
May 12 '17 at 10:35
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Switch statement: must default be the last case?
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The case statements and the default statement can occur in any order in the switch statement. The default clause is an optional clause that is matched if none of the constants in the case statements can be matched.
Good Example :-
switch(5) {
case 1:
echo "1";
break;
case ...
Assign output of os.system to a variable and prevent it from being displayed on the screen [duplicat
...ne("cat /etc/services")
print cmdline('ls')
print cmdline('rpm -qa | grep "php"')
print cmdline('nslookup google.com')
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How can I convert an image into a Base64 string?
...m i can put that String (encondedImage) into a remote database column with PHP+JSON ???? wich type haves to be the column of the database? VARCHAR?
– NullPointerException
Jan 28 '11 at 19:46
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In Windows Azure: What are web role, worker role and VM role?
... to host the application in Windows Azure, so I created a web role. I actually want to know what these roles are for. What is their significance coding wise or storage wise?
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How to find all the subclasses of a class given its name?
I need a working approach of getting all classes that are inherited from a base class in Python.
10 Answers
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Constructing pandas DataFrame from values in variables gives “ValueError: If using all scalar values
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Perhaps it is because the order of items in a list in Python are persistent whereas the ordering of items in a dictionary are not. You can instantiate a DataFrame with an empty dictionary. In principle I suppose a single-row DataFrame as shown here wo...