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Significant new inventions in computing since 1980

... +1 for the most obvious but also the most easily forgotten because we all take it for granted :) – PolyThinker Jan 11 '09 at 15:22 20 ...
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Best explanation for languages without null

... that every reference type gets this extra state in its space that is typically undesired. A string variable could be any sequence of characters, or it could be this crazy extra null value that doesn't map into my problem domain. A Triangle object has three Points, which themselves have X and Y va...
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Parse a .py file, read the AST, modify it, then write back the modified source code

I want to programmatically edit python source code. Basically I want to read a .py file, generate the AST , and then write back the modified python source code (i.e. another .py file). ...
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How do I use IValidatableObject?

... Prop1 = 1, Prop2 = 2 }; bool validateAllProperties = false; var results = new List<ValidationResult>(); bool isValid = Validator.TryValidateObject( toValidate, new ValidationContext(toValidate, null, null), ...
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ValidateAntiForgeryToken purpose, explanation and example

...icking the logged in user into submitting a form, or by simply programmatically triggering a form when the page loads. The feature doesn't prevent any other type of data forgery or tampering based attacks. To use it, decorate the action method or controller with the ValidateAntiForgeryToken attrib...
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What's the difference between process.cwd() vs __dirname?

... Does this mean that process.cwd() is synonym to . for all cases except for require()? – Alexander Gonchiy Aug 29 '15 at 9:44 11 ...
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Running a cron every 30 seconds

...ormatted to ensure it's easy to keep them synchronised. Both cron jobs actually run every minute but the latter one will wait half a minute before executing the "meat" of the job, /path/to/executable. For other (non-cron-based) options, see the other answers here, particularly the ones mentioning fc...
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How to validate an email address in JavaScript

...b"@gmail.com, _@gmail.com, 1@gmail.com , 1_example@something.gmail.com are all valid, but Gmail will never allow any of these email addresses. You should do this by accepting the email address and sending an email message to that email address, with a code/link the user must visit to confirm validit...
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Adding a Method to an Existing Object Instance

...that instance will be passed as the first argument whenever the method is called. Callables that are attributes of a class (as opposed to an instance) are still unbound, though, so you can modify the class definition whenever you want: >>> def fooFighters( self ): ... print "fooFighters...
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In VIM, how do I break one really long line into multiple lines?

... This is the opposite of Ctrl+j (combines multiple lines into one). – Yzmir Ramirez Mar 31 '11 at 3:56 9 ...