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What is the meaning of symbol $ in jQuery?
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By default, jQuery uses "$" as a shortcut for "jQuery"
So, using $("#id") or jQuery("#id") is the same.
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How to check SQL Server version
...ound Method 4 to be more reliable than Method 1 -- I've had servers which didn't get a service pack installed correctly where Method 1 and Method 4 returned different results, but Method 4 was correct.
– Kaganar
Apr 23 '15 at 13:53
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Structs versus classes
...mall
2. Logically an immutable value
3. There's a lot of them
Then I'd consider making it a struct. Otherwise I'd stick with a reference type.
If you need to mutate some field of a struct it is usually better to build a constructor that returns an entire new struct with the field set correctly. Tha...
Error 1022 - Can't write; duplicate key in table
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The most likely you already have a constraint with the name iduser or idcategory in your database. Just rename the constraints if so.
Constraints must be unique for the entire database, not just for the specific table you are creating/altering.
To find out where the constraints are ...
Is it possible to override the configuration of a plugin already defined for a profile in a parent P
...defining some configurations useful for this project (so that I can't get rid of this parent POM) :
3 Answers
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Physical vs. logical / soft delete of database record?
...users username for new records. Working around this you could tack on a GUID to the deleted username column, but it's a very hacky workaround that I wouldn't recommend. Probably in that circumstance it would be better to just have a rule that once a username is used, it can never be replaced.)
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Sticky sidebar: stick to bottom when scrolling down, top when scrolling up
I have been looking for some time now for a solution to my sticky sidebar problem. I have a specific idea of how I would like it to act; effectively, I would like it to stick to the bottom as you scroll down, and then as soon as you scroll back up I would like it to stick to the top, in a fluid moti...
How to handle AccessViolationException
...ine instead of entering the catch block. Additionally, if I run this outside of the visual studio my application crashes. How can I handle this exception that is thrown within the COM object?
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Is it possible to specify condition in Count()?
...y old, but I like the NULLIF trick for such scenarios, and I found no downsides so far. Just see my copy&pasteable example, which is not very practical though, but demonstrates how to use it.
NULLIF might give you a small negative impact on performance, but I guess it should still be faster tha...
Get HTML Source of WebElement in Selenium WebDriver using Python
...riptExecutor class in Python.
WebElement element = driver.findElement(By.id("foo"));
String contents = (String)((JavascriptExecutor)driver).executeScript("return arguments[0].innerHTML;", element);
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