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How can I default a parameter to Guid.Empty in C#?

...id() instead public void Problem(Guid optional = new Guid()) { // when called without parameters this will be true var guidIsEmpty = optional == Guid.Empty; } You can also use default(Guid) default(Guid) also will work exactly as new Guid(). Because Guid is a value type not reference type, ...
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How to decide font color in white or black depending on background color?

... have the intensities for the individual colors, you can determine the overall intensity of the color and choose the corresponding text. if (red*0.299 + green*0.587 + blue*0.114) > 186 use #000000 else use #ffffff The threshold of 186 is based on theory, but can be adjusted to taste. Based on ...
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jQuery convert line breaks to br (nl2br equivalent)

...([^>\r\n]?)(\r\n|\n\r|\r|\n)/g, '$1'+ breakTag +'$2'); } http://phpjs.org/functions/nl2br:480 share | improve this answer | follow | ...
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How can I convert an image into Base64 string using JavaScript?

...on firefox 35 on some images, the base64 is different from the base64 that php creates on the same image. – hanshenrik Mar 6 '15 at 2:39 1 ...
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When do I need to use a semicolon vs a slash in Oracle SQL?

...ce, but I prefer to see scripts that consistently use the slash - this way all "units" of work (creating a PL/SQL object, running a PL/SQL anonymous block, and executing a DML statement) can be picked out more easily by eye. Also, if you eventually move to something like Ant for deployment it will ...
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AngularJS - How to use $routeParams in generating the templateUrl?

... // or other onload stuff } // initialize $scope.templateUrl = 'ci_index.php/adminctrl/enquiry/'+$routeParams.page; ... I believe it is a weakness in angularjs that $routeParams is NOT visible inside the router. A tiny enhancement would make a world of difference during implementation. ...
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How to mark a build unstable in Jenkins when running shell scripts

...ute different tasks. Some are sh/bash scripts that run rsync, and some are PHP scripts. One of the PHP scripts is running some integration tests that output to JUnit XML, code coverage reports, and similar. ...
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How to use NSJSONSerialization

I have a JSON string (from PHP's json_encode() that looks like this: 12 Answers 12 ...
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Difference between a Message Broker and an ESB

...may lack robust journaling and tools for dealing with journals. Some ESBs allow database updates to be rolled back and queues to be replayed into a corrected application once an egregious error in logic has been uncovered and fixed. I don't think most brokers integrate that level of transactional ...
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How to add an Access-Control-Allow-Origin header

...off2)$"> <IfModule mod_headers.c> Header set Access-Control-Allow-Origin "*" </IfModule> </FilesMatch> also in your remote CSS file, the font-face declaration needs the full absolute URL of the font-file (not needed in local CSS files): e.g. @font-face { font-fa...