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Center image using text-align center?
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That will not work as the text-align property applies to block containers, not inline elements, and img is an inline element. See the W3C specification.
Use this instead:
img.center {
display: block;
margin: 0 auto;
}
<di...
How to check if an element is in an array
In Swift, how can I check if an element exists in an array? Xcode does not have any suggestions for contain , include , or has , and a quick search through the book turned up nothing. Any idea how to check for this? I know that there is a method find that returns the index number, but is there ...
How to view the Folder and Files in GAC?
I want to view the folders and sub folders in GAC . Also want to know about adding and removing from GAC .
5 Answers
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What requests do browsers' “F5” and “Ctrl + F5” refreshes generate?
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Generally speaking:
F5 may give you the same page even if the content is changed, because it may load the page from cache. But Ctrl-F5 forces a cache refresh, and will guarantee that if the content is changed, you will get the new content...
Do try/catch blocks hurt performance when exceptions are not thrown?
...osoft employee we came across a large section of code inside a try{} block. She and an IT representative suggested this can have effects on performance of the code. In fact, they suggested most of the code should be outside of try/catch blocks, and that only important sections should be checked. T...
Removing multiple files from a Git repo that have already been deleted from disk
... deleted four files from using rm ( not git rm ), and my Git status looks like this:
29 Answers
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How do I get current date/time on the Windows command line in a suitable format for usage in a file/
...t's 2016 I'd use PowerShell for this unless there's a really compelling backwards-compatible reason for it, particularly because of the regional settings issue with using date . See @npocmaka's https://stackoverflow.com/a/19799236/8479
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~x + ~y == ~(x + y) is always false?
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Assume for the sake of contradiction that there exists some x and some y (mod 2n) such that
~(x+y) == ~x + ~y
By two's complement*, we know that,
-x == ~x + 1
<==> -1 == ~x + x
Noting this result, we have,
~(x+y) == ...
Java: function for arrays like PHP's join()?
...Utils class which has a join function which will join arrays together to make a String.
For example:
StringUtils.join(new String[] {"Hello", "World", "!"}, ", ")
Generates the following String:
Hello, World, !
share
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What is the difference between ManualResetEvent and AutoResetEvent in .NET?
I have read the documentation on this and I think I understand. An AutoResetEvent resets when the code passes through event.WaitOne() , but a ManualResetEvent does not.
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