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Hibernate - Batch update returned unexpected row count from update: 0 actual row count: 0 expected:
... give you a better idea as to which line causes the problem.
Create a unit test which replicates the problem without configuring a transaction manager in Spring. This should give you a better idea of the offending line of code.
Hope that helps.
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What does the '.' (dot or period) in a Go import statement do?
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This should only be used in testing.
Here is some documentation in golang's wiki
If you've generated some mock code such as with mockgen and it imports your package code, and then your testing package also imports your package code, you get a circular...
Constants in Objective-C
...e of using string constants instead of #define'd constants is that you can test for equality using pointer comparison (stringInstance == MyFirstConstant) which is much faster than string comparison ([stringInstance isEqualToString:MyFirstConstant]) (and easier to read, IMO).
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What is the difference between parseInt() and Number()?
... time I've seen NaN. It may be helpful for some folks to know that NaN is tested with the function isNaN ( value ). Just using "if ( value == NaN )", for example, won't work.
– WonderfulDay
May 4 '13 at 9:54
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Why is “while ( !feof (file) )” always wrong?
...that actually queries the EOF state: Suppose you have a string and want to test that it represents an integer in its entirety, with no extra bits at the end except whitespace. Using C++ iostreams, it goes like this:
std::string input = " 123 "; // example
std::istringstream iss(input);
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Using Default Arguments in a Function
... ReflectionFunction('foo'))->getParameters()[1]->getDefaultValue(), 'test');
Whether you would want to do so is another story :)
UPDATE:
The reasons to avoid this solution are:
it is (arguably) ugly
it has an obvious overhead.
as the other answers proof, there are alternatives
But it can a...
JavaScript object: access variable property by name as string [duplicate]
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@BluE: Wouldn't it have been easier to test? ;) Yes, accessing an undefined property returns undefined.
– ThiefMaster
Feb 28 '18 at 14:51
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Count the number of occurrences of a character in a string in Javascript
...t("str").length - 1) //4
Both in @Lo's answer and in my own silly jsperf test split comes ahead in speed, at least in Chrome, but again creating the extra array just doesn't seem sane.
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imp...
Read .mat files in Python
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First save the .mat file as:
save('test.mat', '-v7')
After that, in Python, use the usual loadmat function:
import scipy.io as sio
test = sio.loadmat('test.mat')
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How do I get the last character of a string?
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The code:
public class Test {
public static void main(String args[]) {
String string = args[0];
System.out.println("last character: " +
string.substring(string.length() - 1));
}
}
The output of ...