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How to sort a NSArray alphabetically?
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The simplest approach is, to provide a sort selector (Apple's documentation for details)
Objective-C
sortedArray = [anArray sortedArrayUsingSelector:@selector(localizedCaseInsensitiveCompare:)];
Swift
let descriptor: NSSortDescriptor = NSSortDescriptor(key: "YourKey", ascending: tr...
What are the advantages of using a schema-free database like MongoDB compared to a relational databa
...e are some of the advantages of MongoDB for building web applications:
A document-based data model. The basic unit of storage is analogous to JSON, Python dictionaries, Ruby hashes, etc. This is a rich data structure capable of holding arrays and other documents. This means you can often represent...
How can I convert a long to int in Java?
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Math.toIntExact(value);
Original Answer:
Simple type casting should do it:
long l = 100000;
int i = (int) l;
Note, however, that large numbers (usually larger than 2147483647 and smaller than -2147483648) will lose some of the bits and would be represented incorrectly.
For instance, 21474...
How to change menu item text dynamically in Android
...ime the menu is displayed. So this may not be very efficient, if your menu does not change very often.
– Mr-IDE
Sep 30 '17 at 19:51
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Autocompletion in Vim
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I've tried this but it seems doesn't work.. there's probably a conflict with other scripts..
– diegocstn
Mar 2 '11 at 17:43
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Can I set the height of a div based on a percentage-based width? [duplicate]
Let's say I've got a div that has a width of 50% of the body. How do I make its height equal to that value? So that when the browser window is 1000px wide, the div's height and width are both 500px.
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Django template how to look up a dictionary value with a variable
...et(key)
(I use .get so that if the key is absent, it returns none. If you do dictionary[key] it will raise a KeyError then.)
usage:
{{ mydict|get_item:item.NAME }}
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Handling very large numbers in Python
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The question is, does the performance hit from using bignum instead of 32 bit integers exceed the performance benefit from the clever method of hand evaluation he's using.
– Chris Upchurch
Feb 11 '09 at ...
How to open, read, and write from serial port in C?
...// no remapping, no delays
tty.c_cc[VMIN] = 0; // read doesn't block
tty.c_cc[VTIME] = 5; // 0.5 seconds read timeout
tty.c_iflag &= ~(IXON | IXOFF | IXANY); // shut off xon/xoff ctrl
tty.c_cflag |= (CLOCAL | CREAD);// ignore modem control...
The necessity of hiding the salt for a hash
...ferent for each user but is readily available to us. The other product randomly generates a salt for each user and changes each time the user changes the password. The salt is then encrypted in the database.
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