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How to invert a grep expression
The following grep expression successfully lists all the .exe and .html files in the current directory and sub directories.
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Why is @autoreleasepool still needed with ARC?
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ARC doesn't get rid of retains, releases and autoreleases, it just adds in the required ones for you. So there are still calls to retain, there are still calls to release, there are still calls to autorelease and there are still auto release pools.
One of the other...
Flask-SQLAlchemy how to delete all rows in a single table
...ery.delete() as query object as 'BaseQuery' object is not callable. Tested and verified.
– Shirish Kadam
Jul 13 '19 at 23:29
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C# DLL config file
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It is not trivial to create a .NET configuration file for a .DLL, and for good reason. The .NET configuration mechanism has a lot of features built into it to facilitate easy upgrading/updating of the app, and to protect installed apps from trampling each others configuration files.
There...
Does the use of the “Async” suffix in a method name depend on whether the 'async' modifier is used?
... is ambiguous even from Microsoft documentation:
In Visual Studio 2012 and the .NET Framework 4.5, any method that is
attributed with the async keyword (Async in Visual Basic) is
considered an asynchronous method, and the C# and Visual Basic
compilers perform the necessary transformations ...
Core Data: Quickest way to delete all instances of an entity
...he full object model for, let's say, "Cars" - could be about 2000 of them (and I can't make the Web Service return anything less than 1 or ALL cars.
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Iterate through pairs of items in a Python list [duplicate]
... the advantage that this works on iterators is that this does not require random access into a stream of data (i.e. array access); rather, it only needs to ingest each item once, and caches it for the next evaluation. So if you have, say, a Twitter firehose, you don't ever need to read the firehose ...
How to delete/unset the properties of a javascript object? [duplicate]
...window.a; //true
delete this.a; //true
http://perfectionkills.com/understanding-delete/
another fact is that using delete on an array will not remove the index but only set the value to undefined, meaning in certain control structures such as for loops, you will still iterate over that entity, wh...
Programmatically get the cache line size?
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@android : I use fedora-18 x64 machine with core-i5 processor. cat /sys/devices/system/cpu/cpu0/cache/index0/coherency_line_size returns 64 in my system. Same for index1,2,3 folders also.
– Abid Rahman ...
Configuration With Same Name Already Exists
...g the drop down list from the grid (not the one at the top of the dialog), and do not check the "Create new solution configurations" checkbox when adding your new project configuration.
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