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Big O, how do you calculate/approximate it?
... @arthur That would be O(N^2) because you would require one loop to read through all the columns and one to read all rows of a particular column.
– Abhishek Dey Das
Nov 14 '14 at 20:34
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Javascript: How to check if a string is empty? [duplicate]
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@Residuum: The question reads “How to check if a string is empty?”
– Gumbo
Mar 4 '10 at 17:44
3
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What is the most effective way for float and double comparison?
... Given that this question is tagged C++, your checks would be easier to read being written as std::max(std::abs(a), std::abs(b)) (or with std::min()); std::abs in C++ is overloaded with float & double types, so it works just fine (you can always keep fabs for readability though).
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What is the default height of UITableViewCell?
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@MikeyWard: You probably figured this out already, but the 1px separator is included in the height. It actually covers the bottom-most content of the cell.
– Ben S
Jan 6 '11 at 20:10
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Memcache Vs. Memcached [duplicate]
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This naming convention is clearly being adhered to by memcache when you read the introduction to the memcache module (notice the distinction between memcache and memcached in this excerpt):
Memcache module provides handy
procedural and object oriented
interface to memcached, highly
effe...
Save current directory in variable using Bash?
...ces, e.g. "Google Drive" you have to do cd "$foo" for the whole path to be read
– mercergeoinfo
Jun 10 '16 at 9:20
3
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How to activate “Share” button in android app?
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Add the button where? I already created a menu item with the share icon in my Action Bar
– Si8
Nov 8 '13 at 19:22
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RVM is not a function, selecting rubies with 'rvm use …' will not work
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@AdityaPednekar So, sometimes reading the error/console message actually helps, RVM is not a function, selecting rubies with 'rvm use ...' will not work. You need to change your terminal emulator preferences to allow login shell. Sometimes it is requir...
How to index characters in a Golang string?
...ntln(string([]rune("Hello, 世界")[8])) // UTF-8
}
Output:
e
e
界
Read:
Go Programming Language Specification section on Conversions.
The Go Blog: Strings, bytes, runes and characters in Go
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Opening Android Settings programmatically
... to open the settings into the new option: "Control which applications can read your notifications" (added in API 18)?
– Javi
Mar 5 '14 at 17:04
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