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How do I fix "The expression of type List needs unchecked conversion…'?
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96
Since getEntries returns a raw List, it could hold anything.
The warning-free approach is to c...
Error: allowDefinition='MachineToApplication' beyond application level
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96
I've just encountered this "delight". It seems to present itself just after I've published a w...
How to Append in javascript? [duplicate]
... edited Feb 28 '14 at 9:20
DAC84
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answered Feb 28 '14 at 9:00
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How do I register a DLL file on Windows 7 64-bit?
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Well, you don't specify if it's a 32 or 64 bit dll and you don't include the error message, but I'll guess that it's the same issue as described in this KB article: Error Message When You Run Regsvr32.exe on 64-Bit Windows
Quote from that article:
This behavio...
Determining 32 vs 64 bit in C++
...or a way to reliably determine whether C++ code is being compiled in 32 vs 64 bit. We've come up with what we think is a reasonable solution using macros, but was curious to know if people could think of cases where this might fail or if there is a better way to do this. Please note we are trying to...
How does one generate a random number in Apple's Swift language?
... Swift, but the base functions are limited to 32-bit integer types (Int is 64-bit on iPhone 5S and modern Macs). Here's a generic function for a random number of a type expressible by an integer literal:
public func arc4random<T: ExpressibleByIntegerLiteral>(_ type: T.Type) -> T {
var ...
Reorder / reset auto increment primary key
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96
You could drop the primary key column and re-create it. All the ids should then be reassigned i...
Failed to load the JNI shared Library (JDK)
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You need a 64-bit trio:
64-bit OS
64-bit Java
64-bit Eclipse
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Drop rows with all zeros in pandas data frame
...eit df[(df.sum(axis=1) != 0)]
1000 loops, best of 3: 495 µs per loop
In [96]: %timeit df[df.values.sum(axis=1) != 0]
1000 loops, best of 3: 217 µs per loop
On a larger dataset:
In [119]: bdf = pd.DataFrame(np.random.randint(0,2,size=(10000,4)))
In [120]: %timeit bdf[(bdf.T != 0).any()]
1000 l...
How can I convert an image into a Base64 string?
What is the code to transform an image (maximum of 200 KB) into a Base64 String?
14 Answers
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