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filtering NSArray into a new NSArray in Objective-C
...y indexesOfObjectsPassingTest:] or write your own category to add a handy -select: or -filter: method (example).
Want somebody else to write that category, test it, etc.? Check out BlocksKit (array docs). And there are many more examples to be found by, say, searching for e.g. "nsarray block catego...
String concatenation does not work in SQLite
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Try using || in place of +
select locationname || '<p>' from location;
From SQLite documentation:
The || operator is "concatenate" - it joins together the two strings of its operands.
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Lock Escalation - What's happening here?
...mparing this value before and after running the main part of your script:
SELECT lock_escalation_desc FROM sys.tables WHERE name='yourtablename'
In my case, altering table to drop or add a constraint doesn't seem to modify this value.
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Pick any kind of file via an Intent in Android
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how can I get the selected file ? I guess it's the path, but how ?
– Francisco Corrales Morales
Nov 26 '14 at 17:31
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How to check if activity is in foreground or in visible background?
...stem dialogue box pops-up and I only want to finish() ; once the user has selected an option from the dialogue box?
23 An...
How can I trigger a JavaScript event click
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To repeat the click more than once: Add an ID to the element to uniquely select it:
<a href="#" target="_blank" id="my-link" onclick="javascript:Test('Test');">Google Chrome</a>
and call the .click() method in your JavaScript code via a for loop:
var link = document.getElementById(...
Search for all files in project containing the text 'querystring' in Eclipse
...u at the top, click File..., input your search string, and make sure that 'Selected Resources' or 'Enclosing Projects' is selected, then hit search. The alternative way to open the window is with Ctrl-H. This may depend on your keyboard accelerator configuration.
More details: http://www.ehow.com/h...
Xcode Product -> Archive disabled
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Select active scheme to Generic iOs Device.
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Twig ternary operator, Shorthand if-then-else
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{{ (ability.id in company_abilities) ? 'selected' : '' }}
The ternary operator is documented under 'other operators'
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Exception thrown inside catch block - will it be caught again?
...lause of the try statement, then the first (leftmost) such catch clause is selected. The value V is assigned to the parameter of the selected catch clause, and the Block of that catch clause is executed. If that block completes normally, then the try statement completes normally; if that block compl...