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What is the difference between ExecuteScalar, ExecuteReader and ExecuteNonQuery?
What are the different cases when we use these three? Where should I use one and where should I not?
9 Answers
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Questions every good .NET developer should be able to answer? [closed]
...ference between overriding and overloading a method? Explain how both are done.
What's the difference between protected and internal? What about "protected internal"?
How do short-circuited operators work?
Explain what the StringBuilder class is and why you'd want to use it?
What's the difference be...
Removing duplicates from a list of lists
...p inner loops of code that's pushing the boundaries of performance limits) one may need to go into much more detail, providing probability distributions, deciding which performance measures to optimize (maybe the upper bound or the 90th centile is more important than an average or median, depending ...
How to make zsh run as a login shell on Mac OS X (in iTerm)?
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This works for the default zsh not for the one installed by brew.
– Imam Bux
Dec 15 '18 at 10:21
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Java 8: How do I work with exception throwing methods in streams?
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You need to wrap your method call into another one, where you do not throw checked exceptions. You can still throw anything that is a subclass of RuntimeException.
A normal wrapping idiom is something like:
private void safeFoo(final A a) {
try {
a.foo();
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Why is the gets function so dangerous that it should not be used?
...edited Feb 5 '16 at 0:18
Marco Bonelli
41.5k1616 gold badges8585 silver badges9999 bronze badges
answered Nov 7 '09 at 18:56
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Unresolved specs during Gem::Specification.reset:
...pec on its own. From what I understand, this means that you have more than one version of the listed gems installed on your system, and RSpec is unsure which one to use. After uninstalling older version of the gems, the warnings went away.
You can try:
gem cleanup lumberjack
Or:
gem list lumber...
How do you test running time of VBA code?
...slow, you're going to need a very high-resolution timer. The most accurate one I know is QueryPerformanceCounter. Google it for more info. Try pushing the following into a class, call it CTimer say, then you can make an instance somewhere global and just call .StartCounter and .TimeElapsed
Option E...
Unescape HTML entities in Javascript?
... accepted answer, consider the following:
htmlDecode("<img src='dummy' onerror='alert(/xss/)'>");
The string here contains an unescaped HTML tag, so instead of decoding anything the htmlDecode function will actually run JavaScript code specified inside the string.
This can be avoided by us...
Difference between StringBuilder and StringBuffer
... and StringBuilder ?
Is there any performance issues when deciding on any one of these?
33 Answers
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