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Undefined symbols for architecture i386: _OBJC_CLASS_$_SKPSMTPMessage", referenced from: error
...r the "Compile Sources" step of the "Build Phases" tab of your target. Normally Xcode does this for you, but sometimes it loses the plot and you need to add the .m file manually.
To do this:
TargetSettings -> Build Phases -> Compile Sources -> add your .m class ->Build and Run
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What's the difference between a Python “property” and “attribute”?
I am generally confused about the difference between a "property" and an "attribute", and can't find a great resource to concisely detail the differences.
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Illegal mix of collations MySQL Error
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@Ben: It was initially developed by a Swedish company... That is the reason behind the annoying latin1_swedish_ci initial setting.. :(
– Vajk Hermecz
Sep 29 '14 at 7:45
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Characters allowed in a URL
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The characters allowed in a URI are either reserved or unreserved (or a percent character as part of a percent-encoding)
http://en.wikipedia.org/wiki/Percent-encoding#Types_of_URI_characters
says these are RFC 3986 unreserved characters ...
What does the regular expression /_/g mean?
...egex matches the _ character.
The g means Global, and causes the replace call to replace all matches, not just the first one.
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Unable to load DLL (Module could not be found HRESULT: 0x8007007E)
...found some dependency's missing (Oracle and some dll from IE). Need to install Oracle since my dll depends on that..then i will know :) Found the problem with DependencyWalker ;)
– Ingimar Andresson
Jan 25 '12 at 13:48
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Chrome can't load web worker
...to make a universal solution is this:
function worker_function() {
// all code here
}
// This is in case of normal worker start
// "window" is not defined in web worker
// so if you load this file directly using `new Worker`
// the worker code will still execute properly
if(window!=self)
work...
How do I check whether a jQuery element is in the DOM?
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There is a pure-DOM way to do this, which is syntactically more readable, and I imagine very similar in terms of performance: document.contains($foo[0])
– Joel Cross
Dec 1 '15 at 10:16
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Can I have multiple Xcode versions installed?
Is it possible to have more than one version of Xcode installed at the same time?
12 Answers
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Ways to implement data versioning in MongoDB
... approach would be to store diffs. Because the display of these diffs is really a special action, I would put the diffs in a different "history" collection.
I would use the different collection to save memory space. You generally don't want a full history for a simple query. So by keeping the histo...