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I need to store postal codes in a database. How big should the column be?
...hat when clients are retrieving data from the database, they are generally allocating memory based on the maximum size of the data that will be fetched, not the actual length of a given row. Probably not a huge deal in this specific case, but 40 bytes per row could be a decent chunk of RAM for some...
java.util.regex - importance of Pattern.compile()?
...r object that is only ever used by one thread at a time in order to reduce allocations.
– AndrewF
Jul 3 '19 at 20:40
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Why does document.querySelectorAll return a StaticNodeList rather than a real Array?
...erp a hint on how long the array's going to end up. That could allow it to allocate that amount of space in advance, which would potentially result in a speedup as some memory reallocations could be avoided as the array grows. I don't know if it actually helps in modern browsers though... I would su...
How to correctly use the extern keyword in C
...les: on variables it doesn't instantiate the variable itself, i.e. doesn't allocate any memory. This needs to be done somewhere else. Thus it's important if you want to import the variable from somewhere else. For functions, this only tells the compiler that linkage is extern. As this is the default...
How do I enable MSDTC on SQL Server?
...ain range using the keys as described in How to configure RPC dynamic port allocation to work with firewalls.
In my experience, if the DTCPing is able to setup a DTC connection initiated from the client and initiated from the server, your transactions are not the problem any more.
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Getting current device language in iOS?
...ntire language name from the preferredLocalization, you can use [[NSLocale alloc] initWithLocaleIdentifier:language] (from above). Then you have the locale and can call displayNameForKey.
– Vanessa Forney
Jan 18 '18 at 9:59
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Git merge left HEAD marks in my files
...bin/bash
for f in $(grep -Rl '^>>>>>>> ' --include="*.php" --include="*.css" --include="*.js" --include="*.html" --include="*.svg" --include="*.txt" .)
do
sed -i -e '/^=======/,/^>>>>>>> /d' -e '/^<<<<<<< /d' $f
sed -i -e '/^>>>...
What __init__ and self do on Python?
...elf._y = y
The __init__ method gets called when memory for the object is allocated:
x = Point(1,2)
It is important to use the self parameter inside an object's method if you want to persist the value with the object. If, for instance, you implement the __init__ method like this:
class Point:
...
Eclipse returns error message “Java was started but returned exit code = 1”
...ms value (for instance, the bat file is on a read-only shared drive), then allocate more memory to the VM. Seems obvious but I overlooked this for an hour.
– Skurfur
Jul 19 '17 at 3:46
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How can I concatenate two arrays in Java?
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@djBo: what about:ByteBuffer buffer = ByteBuffer.allocate(array1.length + array2.length); buffer.put(array1); buffer.put(array2); return buffer.array();
– Sam Goldberg
Dec 2 '11 at 15:29
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