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Readonly Properties in Objective-C?

...ing"; // Notice the underscore prefix of var name. That’s it, that’s all you need. No muss, no fuss. Details As of Xcode 4.4 and LLVM Compiler 4.0 (New Features in Xcode 4.4), you need not mess with the chores discussed in the other answers: The synthesize keyword Declaring a variable Re-...
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Where to store global constants in an iOS application?

...sets of constants to include before #include-ing the constants file (stops all those "defined but not used" compiler warnings). – user244343 Aug 19 '11 at 2:26 ...
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Do sealed classes really offer performance Benefits?

... The JITter will sometimes use non-virtual calls to methods in sealed classes since there is no way they can be extended further. There are complex rules regarding calling type, virtual/nonvirtual, and I don't know them all so I can't really outline them for you, but ...
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How do I select a random value from an enumeration?

... Use Enum.GetValues to retrieve an array of all values. Then select a random array item. static Random _R = new Random (); static T RandomEnumValue<T> () { var v = Enum.GetValues (typeof (T)); return (T) v.GetValue (_R.Next(v.Length)); } Test: for (in...
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Create a table without a header in Markdown

... headers multimarkdown Maruku: A popular implementation in Ruby byword: "All tables must begin with one or more rows of headers" PHP Markdown Extra "second line contains a mandatory separator line between the headers and the content" RDiscount Uses PHP Markdown Extra syntax. GitHub Flavoured Markd...
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How to use Morgan logger?

...mote ip, request method, http version, response status, user agent etc. It allows you to modify the log using tokens or add color to them by defining 'dev' or even logging out to an output stream, like a file. For the purpose we thought we can use it, as in this case, we still have to use: console...
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Rails check if yield :area is defined in content_for

... not really necessary to create a helper method: <% if @content_for_sidebar %> <div id="sidebar"> <%= yield :sidebar %> </div> <% end %> then of course in your view: <% content_for :sideb...
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Convert floats to ints in Pandas?

... If it's dtype then you need to create those columns as dtype object so it allows mixed, otherwise my advice would be to just use float and when doing comparisons use np.isclose – EdChum Jun 7 '19 at 7:46 ...
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How to search for a part of a word with ElasticSearch

... to 50 letters. Adjust the max_gram as you need. In german words can get really big, so I set it to a high value. share | improve this answer | follow | ...
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How can I create download link in HTML?

... new browser window appear before the download starts. That window will usually be closed when the browser discovers that the resource is a file download. Note that file types known to the browser (e.g. JPG or GIF images) will usually be opened within the browser. You can try sending the right hea...