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Fastest way to check if a string matches a regexp in ruby?

...y require 'benchmark' str = "aacaabc" re = Regexp.new('a+b').freeze N = 4_000_000 Benchmark.bm do |b| b.report("str.match re\t") { N.times { str.match re } } b.report("str =~ re\t") { N.times { str =~ re } } b.report("str[re] \t") { N.times { str[re] } } b.report("re =~ str...
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How do you know a variable type in java?

... I just figured that was what the OP was really looking for since the declaration of a is pretty obvious at compile time – Martin Apr 20 '10 at 11:22 ...
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Is it possible to make anonymous inner classes in Java static?

... a reference to the pointer of the containing instance (they are also not called inner classes anymore, they are called nested classes). ...
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Regex (grep) for multi-line search needed [duplicate]

... Without the need to install the grep variant pcregrep, you can do multiline search with grep. $ grep -Pzo "(?s)^(\s*)\N*main.*?{.*?^\1}" *.c Explanation: -P activate perl-regexp for grep (a powerful extension of regular expressions) -z suppress...
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How to explore web-based Google Play in another country?

if I go to play.google.com, it automatically recognizes my country and allow me to browse the apps for that country. I can change the language through the dropdown in the footer, or I can add &hl=code in the querystring...but that only changes the language...not the store content (the app lists and ...
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Collections.emptyList() vs. new instance

...ntly. In addition, emptyList() might not create a new object with each call. Implementations of this method need not create a separate List object for each call. Using this method is likely to have comparable cost to using the like-named field. (Unlike this method, the field does not provide ...
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More elegant “ps aux | grep -v grep”

... brilliant hack (I think I should call it that, since the aux / grep authors probably did not think of this scenario.) – Michael Trouw Apr 12 '16 at 14:12 ...
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Downloading a file from spring controllers

... @RequestMapping(value = "/files/{file_name}", method = RequestMethod.GET) public void getFile( @PathVariable("file_name") String fileName, HttpServletResponse response) { try { // get your file as InputStream InputStream is = ...; ...
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Append a Lists Contents to another List C#

... Here is my example: private List<int> m_machinePorts = new List<int>(); public List<int> machinePorts { get { return m_machinePorts; } } Init() { // Custom function to get available ethernet ports List<i...
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Equivalent of *Nix 'which' command in PowerShell?

... Is there any way to have the path all the time without to type '| Format-Table Path, Name' ? – Guillaume Jan 11 '13 at 8:18 11 ...