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StringBuilder vs String concatenation in toString() in Java
Given the 2 toString() implementations below, which one is preferred:
18 Answers
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What does immutable mean?
... that substring would change the original string instead of creating a new one.
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not:first-child selector
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One of the versions you posted actually works for all modern browsers (where CSS selectors level 3 are supported):
div ul:not(:first-child) {
background-color: #900;
}
If you need to support legacy browsers, or if you ...
Debug vs. Release performance
...gful results. "Slower" is meaningless because it is not clear whether it's one microsecond slower or twenty minutes slower. "10% slower under realistic conditions" is more meaningful.
Spend the time you would have spent researching this question online on building a device which answers the quest...
How do I turn a C# object into a JSON string in .NET?
...here is online tool to convert your classes to json format, hope helps someone.
– shaijut
Jan 25 '17 at 8:24
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Differences between TCP sockets and web sockets, one more time [duplicate]
...you allege would be absurd. All it really says is "Expert editors are cautioned to be mindful of the potential conflict of interest that may arise if editing articles which concern an expert's own research, writings, or discoveries."
– Marquis of Lorne
Aug 11 '...
What's the difference between the atomic and nonatomic attributes?
...ead B and C calling the setter with different values, thread A may get any one of the three values returned -- the one prior to any setters being called or either of the values passed into the setters in B and C. Likewise, the object may end up with the value from B or C, no way to tell.
Ensuring ...
What is the difference between a string and a byte string?
...f\x81\xce\xbdo\xcf\x82'.decode('utf-8')
'τoρνoς'
Once you know which one to use, you can use the .decode() method of the byte string to get the right character string from it as above. For completeness, the .encode() method of a character string goes the opposite way:
>>> 'τoρνoς...
How do ACID and database transactions work?
...micity means that you can guarantee that all of a transaction happens, or none of it does; you can do complex operations as one single unit, all or nothing, and a crash, power failure, error, or anything else won't allow you to be in a state in which only some of the related changes have happened.
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Incrementing a date in JavaScript
I need to increment a date value by one day in JavaScript.
16 Answers
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