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Why can't I save CSS changes in Firebug? [closed]

... on demand to your web server (by communication with a one-file webservice php script). Documentation can be found at my homepage or on the addon page I would appreciate any testing, bug reports, comments, ratings, discussion on this, as it's still in early beta, but should already work fine. ...
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What is the benefit of zerofill in MySQL?

...rkByers, Practically speaking though, wouldn't most client-libraries (e.g. PHP) simply strip the zeros off before they hand it over to the application code? If so, then it really seems somewhat pointless. A bad design in the early days of MySQL. – Pacerier May...
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How to cancel/abort jQuery AJAX request?

...ct return $def.promise(); } // initiate first call singleAjax('/ajax.php', {a: 1, b: 2}) .always(function(a,b,c) {console && console.log(a,b,c);}); // second call kills first one singleAjax('/ajax.php', {a: 1, b: 2}) .always(function(a,b,c) {console && console.log(a,b,...
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Create a “with” block on several context managers? [duplicate]

Suppose you have three objects you acquire via context manager, for instance A lock, a db connection and an ip socket. You can acquire them by: ...
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DbEntityValidationException - How can I easily tell what caused the error?

... My Create View errors on base.SaveChanges() which is in the try block. It never jumps into the catch block. I got your code to over ride SaveChanges but it never gets into the Catch Block on error. – JustJohn Oct 21 '15 at 0:42 ...
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Detect when an image fails to load in Javascript

...y wouldn't try and load an image that isn't there. – PHP Guru Feb 12 at 19:29 1 ...
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Extracting text OpenCV

... Here is an alternative approach that I used to detect the text blocks: Converted the image to grayscale Applied threshold (simple binary threshold, with a handpicked value of 150 as the threshold value) Applied dilation to thicken lines in image, leading to more compact objects and less...
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ALTER TABLE without locking the table?

...f the statement. If it's a big table, INSERT or UPDATE statements could be blocked for a looooong time. Is there a way to do a "hot alter", like adding a column in such a way that the table is still updatable throughout the process? ...
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How to enable Bootstrap tooltip on disabled button?

...er has display:inline then the tooltip doesn't seem to work. Using display:block and display:inline-block seem to work fine. It also appears to work fine with a floated wrapper. UPDATE Here's an updated JSFiddle that works with the latest Bootstrap (3.3.6). Thanks to @JohnLehmann for suggesting poi...
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What is self-documenting code and can it replace well documented code? [closed]

...ts of the code that are not self-documenting AND writes a comment for each block of code that explains the intent, or what the code does on a higher abstraction level (i.e. find all files larger than 10 MB instead of loop through all files in a directory, test if file size is larger than 10 MB, yiel...