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Convert string to symbol-able in ruby
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Rails got ActiveSupport::CoreExtensions::String::Inflections module that provides such methods. They're all worth looking at. For your example:
'Book Author Title'.parameterize.underscore.to_sym # :book_author_title
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Android 4.2: back stack behaviour with nested fragments
...l answer to this question is in the Fragment Transaction's function called setPrimaryNavigationFragment.
/**
* Set a currently active fragment in this FragmentManager as the primary navigation fragment.
*
* <p>The primary navigation fragment's
* {@link Fragment#getChildFragmentManager() c...
Python read-only property
...the rare instance where it just does not make sense for an attribute to be settable (such as a derived value, or a value read from some static datasource), the getter-only property is generally the preferred pattern.
share
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How do I find all files containing specific text on Linux?
I'm trying to find a way to scan my entire Linux system for all files containing a specific string of text. Just to clarify, I'm looking for text within the file, not in the file name.
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How does this print “hello world”?
...ee that the ascii characters we want to map begin with the 7th and 6th bit set (11xxxxx₂) (except for space, which only has the 6th bit on), you could OR the 5-bit
codification with 96 (96₁₀ = 1100000₂) and that should be enough to do the mapping, but that wouldn't work for space (darn space...
How does the “this” keyword work?
...>
alert("I'm evaluated in the initial global execution context!");
setTimeout(function () {
alert("I'm NOT evaluated in the initial global execution context.");
}, 1);
</script>
When evaluating code in the initial global execution context, ThisBinding is set to the global obje...
How to create a colored 1x1 UIImage on the iPhone dynamically?
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You can use CGContextSetFillColorWithColor and CGContextFillRect for this:
Swift
extension UIImage {
class func image(with color: UIColor) -> UIImage {
let rect = CGRectMake(0.0, 0.0, 1.0, 1.0)
UIGraphicsBeginImageContext...
How do I check CPU and Memory Usage in Java?
... So if I'm runnin in Eclipse, this will depend on my Eclipse settings?
– Coffee
Mar 1 '13 at 2:08
4
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Skip certain tables with mysqldump
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if the database name is not set for each --ignore-table then you will get a 'Illegal use of option --ignore-table=<database>.<table>' error. Make sure you always declare the database!
– supajb
Oct 31 '1...
How to get the number of characters in a std::string?
How should I get the number of characters in a string in C++?
12 Answers
12
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