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Serializing to JSON in jQuery [duplicate]
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@pat, the 2nd, "replacer" arg is very useful for custom serialization of known objects. For example, I am serializing SVG elements using: JSON.stringify(obj, function(key, val) { if (val instanceof SVGSVGElement) {return val.xml || new XMLSerializer().serializeToString(val)...
Git pre-push hooks
...ok designed to be used for? I would like to use it to push my binary to my customers when pushing to a specific branch(i.e. build the nightly version and upload it with curl, before pushing). The problem is that it takes a while to build and upload, and remote closes connection. So i end up with my ...
Globally catch exceptions in a WPF application?
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Recently I had an App.config corruption at a customer, and her App wasn't even starting because NLog was trying to read from App.config and threw an exception. Since that exception was in the static logger initializer, it wasn't being caught by the UnhandledException ha...
What is the point of function pointers?
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Examples:
Custom sorting/searches
Different
patterns (like Strategy, Observer)
Callbacks
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How to test an SQL Update statement before running it?
... @rickozoe below:
In general these lines will not be executed as once. In PHP f.e. you would write something like that (perhaps a little bit cleaner, but wanted to answer quick ;-) ):
$MysqlConnection->query('START TRANSACTION;');
$erg = $MysqlConnection->query('UPDATE MyGuests SET lastname=...
Disable Required validation attribute under certain circumstances
...the inheriting property is forced to be [Required] also, unless you have a custom [Optional] attribute.
– Yorro
Dec 16 '13 at 6:18
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What does ~~ (“double tilde”) do in Javascript?
...nd-about way.
See this thread: http://www.sitepoint.com/forums/showthread.php?t=663275
Also, more detailed info is available here: http://dreaminginjavascript.wordpress.com/2008/07/04/28/
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Changing Font Size For UITableView Section Headers
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If subclassing then you would anyway be returning a custom view from - tableView:viewForHeaderInSection: right? In which case the font can be set right there. This is what @mosca1337's solution does anyway.
– trss
May 3 '14 at 15:22
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In JavaScript, why is “0” equal to false, but when tested by 'if' it is not false by itself?
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It's PHP where the string "0" is falsy (false-when-used-in-boolean-context). In JavaScript, all non-empty strings are truthy.
The trick is that == against a boolean doesn't evaluate in a boolean context, it converts to number, an...
How to concatenate strings of a string field in a PostgreSQL 'group by' query?
...string_agg(text, text) (
SFUNC=string_agg_transfn,
STYPE=text
);
Custom variations (all Postgres versions)
Prior to 9.0, there was no built-in aggregate function to concatenate strings. The simplest custom implementation (suggested by Vajda Gabo in this mailing list post, among many other...