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Detecting WPF Validation Errors

...ncyObject obj) { // The dependency object is valid if it has no errors and all // of its children (that are dependency objects) are error-free. return !Validation.GetHasError(obj) && LogicalTreeHelper.GetChildren(obj) .OfType<DependencyObject>() .All(IsValid); }...
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Mocha / Chai expect.to.throw not catching thrown errors

...test keeps failing on the thrown error, but If I wrap the test case in try and catch and assert on the caught error, it works. ...
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How to get all possible combinations of a list’s elements?

I have a list with 15 numbers in, and I need to write some code that produces all 32,768 combinations of those numbers. 27...
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How to retrieve Request Payload

I'm using PHP , ExtJS and ajax store . 2 Answers 2 ...
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When should I use ugettext_lazy?

I have a question about using ugettext and ugettext_lazy for translations. I learned that in models I should use ugettext_lazy , while in views ugettext. But are there any other places, where I should use ugettext_lazy too? What about form definitions? Are there any performance diffrences betwe...
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Best way to pretty print a hash

I have a large hash with nested arrays and hashes. I would like to simply print it out so it 'readable' to the user. 12 An...
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Tracking the script execution time in PHP

... On unixoid systems (and in php 7+ on Windows as well), you can use getrusage, like: // Script start $rustart = getrusage(); // Code ... // Script end function rutime($ru, $rus, $index) { return ($ru["ru_$index.tv_sec"]*1000 + intval($ru["...
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Update or Insert (multiple rows and columns) from subquery in PostgreSQL

... postfix: "", imageUploader: { brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9....
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How to make Regular expression into non-greedy?

...'m using jQuery. I have a string with a block of special characters (begin and end). I want get the text from that special characters block. I used a regular expression object for in-string finding. But how can I tell jQuery to find multiple results when have two special character or more? ...
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Converting a double to an int in C#

...le numbers, the even number is returned; that is, 4.5 is converted to 4, and 5.5 is converted to 6. ...while the cast truncates: When you convert from a double or float value to an integral type, the value is truncated. Update: See Jeppe Stig Nielsen's comment below for additional differ...