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Is file append atomic in UNIX?
... for granted when we append to a file in UNIX from multiple processes? Is it possible to lose data (one process overwriting the other's changes)? Is it possible for data to get mangled? (For example, each process is appending one line per append to a log file, is it possible that two lines get ma...
Can I split an already split hunk with git?
I've recently discovered git's patch option to the add command, and I must say it really is a fantastic feature.
I also discovered that a large hunk could be split into smaller hunks by hitting the s key, which adds to the precision of the commit.
But what if I want even more precision, if the...
MySQL - force not to use cache for testing speed of query
...eed of some queries in MySQL. The database is caching these queries making it difficult for me to get reliable results when testing how fast these queries are.
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How to properly ignore exceptions
When you just want to do a try-except without handling the exception, how do you do it in Python?
11 Answers
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jQuery UI dialog positioning
I am trying to use the jQuery dialog UI library in order to position a dialog next to some text when it is hovered over. The jQuery dialog takes a position parameter which is measured from the top left corner of the current viewport (in other words, [0, 0] will always put it in the upper left h...
How do you count the number of occurrences of a certain substring in a SQL varchar?
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The first way that comes to mind is to do it indirectly by replacing the comma with an empty string and comparing the lengths
Declare @string varchar(1000)
Set @string = 'a,b,c,d'
select len(@string) - len(replace(@string, ',', ''))
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How to check whether dynamically attached event listener exists or not?
Here is my problem: is it possible somehow to check for existence of dynamically attached event listener? Or how can I check the status of the "onclick" (?) property in DOM? I have searched internet just like Stack Overflow for a solution, but no luck. Here is my html:
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Status bar and navigation bar appear over my view's bounds in iOS 7
...hanges in view-controller layout, tint
color, and font affect all the UIKit objects in your app. In
addition, enhancements to gesture recognizer APIs give you finer
grained control over gesture interactions.
Using View Controllers
In iOS 7, view controllers use full-screen layout. A...
HTTPS and SSL3_GET_SERVER_CERTIFICATE:certificate verify failed, CA is OK
... a list of accepted CAs, but no longer bundles ANY CA certs. So by default it'll reject all SSL certificates as unverifiable.
You'll have to get your CA's cert and point curl at it. More details at cURLS's Details on Server SSL Certificates.
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Wrap text in tag
...t to wrap some text that is added to a <td> element.
I have tried with style="word-wrap: break-word;" width="15%" .
But it is not wrapping the text. Is it mandatory to give it 100% width?
I have other controls to display so only 15% width is available.
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