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leading zeros in rails
...using a given padding character.
str.rjust(integer, padstr=' ') → new_str
If integer is greater than the length of str, returns a new String of length integer with str right justified and padded with padstr; otherwise, returns str.
some_int = 5
some_int.to_s.rjust(2, '0') # => '05'
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How to urlencode data for curl command?
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@kberg actually, this will only work for query data. curl will append a '?' followed by the urlencoded params. If you want to urlencode some url postfix (such as a CouchDB GET for some document id), then '--data-urlencode' won't work.
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动态追踪（Dynamic Tracing）技术漫谈 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...于 21 世纪初诞生于 Solaris 操作系统，是由原来的 Sun Microsystems 公司的工程师编写的。可能很多同学都听说过 Solaris 系统和 Sun 公司的大名。
最初产生的时候，我记得有这样一个故事，当时 Solaris 操作系统的几个工程师花了几天...
How do I save a String to a text file using Java?
In Java, I have text from a text field in a String variable called "text".
24 Answers
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Add an element to an array in Swift
...red Jun 2 '14 at 20:33
Mick MacCallumMick MacCallum
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How to use a variable to specify column name in ggplot
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"cumbersome"? Non-standard evaluation in R is ironically the most cumbersome "feature" I have ever encountered in a programming language. Truly maddening.
– jessexknight
Feb 4 at 18:10
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Swift - How to convert String to Double
...ocumentation:(They are not locale-aware) The following convenience methods all skip initial space characters (whitespaceSet) and ignore trailing characters. They are not locale-aware. NSScanner or NSNumberFormatter can be used for more powerful and locale-aware parsing of numbers.
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Is there any algorithm in c# to singularize - pluralize a word?
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Hmmm are you allow to redistribute, or just use, a Design DLL? I ask that because I know that the license for DevExpress prohibit redistributing any .design DLL.
– Pierre-Alain Vigeant
Mar 30 '11 at ...
Is there any way to hide “-” (Delete) button while editing UITableView
... equivalent to accepted answer with just the needed funcs:
func tableView(_ tableView: UITableView, shouldIndentWhileEditingRowAt indexPath: IndexPath) -> Bool {
return false
}
func tableView(_ tableView: UITableView, editingStyleForRowAt indexPath: IndexPath) -> UITableViewCellEditingSt...
targetContentOffsetForProposedContentOffset:withScrollingVelocity without subclassing UICollectionVi
...or anyone who is reading this in the future.
First I set up the subclass call MyCollectionViewFlowLayout and then in interface builder I changed the collection view layout to Custom and selected my flow layout subclass.
Because you're doing it this way you can't specify items sizes, etc... in IB s...