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How does Google's Page Speed lossless image compression work?

...website it will suggest cases where an image can be losslessly compressed, and provide a link to download this smaller image. ...
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jQuery find parent form

...l inputs, this is much faster than .closest() (5-10 times faster in Chrome and IE8). Works on IE6 & 7 too. var input = $('input[type=submit]'); var form = input.length > 0 ? $(input[0].form) : $(); share | ...
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Underscore prefix for property and method names in JavaScript

...by convention but are still public. This syntax tries to be both terse and intuitive, although it's rather different from other programming languages. Why was the sigil # chosen, among all the Unicode code points? @ was the initial favorite, but it was taken by decorators. TC39 con...
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iOS 7.0 No code signing identities found

...oning profile Create New or Edit existing Provisioning profile. Download and install. For BundleIdentifier. com.yourcompanyName.Something (Put same as in AppId) CodeSigningIdentity. Select The Provisioning profile which you created. ...
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Post an empty body to REST API via HttpClient

... POST but with an empty body. I'm new to using the WCF Web API HttpClient and I can't seem to find out the write code that would do a post with an empty body. I find references to some HttpContent.CreateEmpty() method, but I don't think that is for the Web API HttpClient code since I can't seem to...
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In C#, why is String a reference type that behaves like a value type?

...it has most of the characteristics of a value type such as being immutable and having == overloaded to compare the text rather than making sure they reference the same object. ...
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Run an exe from C# code

...agnostics; class Program { static void Main() { LaunchCommandLineApp(); } /// <summary> /// Launch the application with some options set. /// </summary> static void LaunchCommandLineApp() { // For the example const string ex1 = "C...
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datatrigger on enum to change image

I've got a button with a fixed background image and would like to show a small overlay image on top of it. Which overlay image to chose depends on a dependency property ( LapCounterPingStatus ) of the according viewmodel. ...
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Change One Cell's Data in mysql

... I was confused by this answer, thinking SET selected rows to change, and WHERE changed them. – Keith May 30 '17 at 18:50 ...
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Try-catch speeding up my code?

... One of the Roslyn engineers who specializes in understanding optimization of stack usage took a look at this and reports to me that there seems to be a problem in the interaction between the way the C# compiler generates local variable stores and the way the JIT compiler does re...