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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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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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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...
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...
How can I print variable and string on same line in Python?
... you to do some other things as well, like padding, fill, alignment,width, set precision etc
>>> print "{:d} {:03d} {:>20f}".format(1,2,1.1)
1 002 1.100000
^^^
0's padded to 2
Demo:
>>> births = 4
>>> print "If there was a birth every 7 seconds, there w...
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 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 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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App Inventor 2 SQLite 拓展：超流行兼容主流SQL语法的迷你本地数据库引擎 ...
...展由中文网开发及维护，基于开源 aix-SQLite 拓展。
与 TaifunSQLite 功能类似，但TaifunSQLite是收费的，美刀。
.aix 拓展下载：
cn.fun123.SQLite.aix
SQLite
SQLite 是 Android 内置的小型、快速、独立的 SQL（结构化查询语...