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ARC and bridged cast
...ained <CFType>) op or alternatively CFBridgingRetain(op) is used to hand an NSObject over to CF-land while giving it a +1 retain count. You should handle a CFTypeRef you create this way the same as you would handle a result of CFStringCreateCopy(). This could also be represented by CFRetain((_...
What is database pooling?
I just wanted to know the concept of database connection pooling and how it is achieved.
6 Answers
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Adding elements to object
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thank you, but my cart now is not an array and i can't do the cart.push :( i need an object to use JSON.stringify(cart) after this operation
– HypeZ
Jan 9 '13 at 12:03
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How should I escape commas and speech marks in CSV files so they work in Excel?
...en the CSV file in Excel by double clicking it. My data may contain commas and speech marks, so I'm escaping those as follows.
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How to fix java.lang.UnsupportedClassVersionError: Unsupported major.minor version
...er to generate class files compatible with Java 1.4, use the following command line:
javac -target 1.4 HelloWorld.java
With newer versions of the Java compiler you are likely to get a warning about the bootstrap class path not being set. More information about this error is available in a blog po...
Reading specific lines only
... loop to read a file, but I only want to read specific lines, say line #26 and #30. Is there any built-in feature to achieve this?
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Fastest way to serialize and deserialize .NET objects
I'm looking for the fastest way to serialize and deserialize .NET objects. Here is what I have so far:
9 Answers
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How to deal with persistent storage (e.g. databases) in Docker
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Docker 1.9.0 and above
Use volume API
docker volume create --name hello
docker run -d -v hello:/container/path/for/volume container_image my_command
This means that the data-only container pattern must be abandoned in favour of the ne...
How can I know which parts in the code are never used?
..., it's much more difficult. Statically it requires whole program analysis, and even though link time optimization may actually remove dead code, in practice the program has been so much transformed at the time it is performed that it is near impossible to convey meaningful information to the user.
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How to loop through an associative array and get the key? [duplicate]
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Nobody answered with regular for loop? Sometimes I find it more readable and prefer for over foreach
So here it is:
$array = array('key1' => 'value1', 'key2' => 'value2');
$keys = array_keys($array);
for($i=0; $i < count($keys); ++$i) {
echo $keys[$i] . ' ' . $array[$keys[$i]] . "...