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@UniqueConstraint annotation in Java
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427
To ensure a field value is unique you can write
@Column(unique=true)
String username;
The @Un...
Why does the C preprocessor interpret the word “linux” as the constant “1”?
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967
In the Old Days (pre-ANSI), predefining symbols such as unix and vax was a way to allow code to ...
Move branch pointer to different commit without checkout
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edited Jul 2 at 17:16
community wiki
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How to convert / cast long to String?
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397
See the reference documentation for the String class: String s = String.valueOf(date);
If your ...
Listening for variable changes in JavaScript
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7
This is a ton of code per object, is there a way to make this more reusable?
– Vael Victus
Dec 18 '17...
Selenium wait until document is ready
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27 Answers
27
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What is a lambda expression in C++11?
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Flexo♦Flexo
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How to render an ASP.NET MVC view as a string?
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577
Here's what I came up with, and it's working for me. I added the following method(s) to my cont...
How to redirect both stdout and stderr to a file [duplicate]
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447
If you want to log to the same file:
command1 >> log_file 2>&1
If you want diffe...
How to prevent long words from breaking my div?
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7
Cool! According to wikipedia, you can get a zero-width space with ​ -- since you brought it up, do you know a less-ugly escape cod...