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Check image width and height before upload with Javascript

.../Initiate the JavaScript Image object. var image = new Image(); //Set the Base64 string return from FileReader as source. image.src = e.target.result; //Validate the File Height and Width. image.onload = function () { var height = this.height; var width = this.width; if (height > 100 || w...
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Checking if sys.argv[x] is defined

...h = sys.argv[1] else: blah = 'blah' Some people prefer the exception-based approach you've suggested (eg, try: blah = sys.argv[1]; except IndexError: blah = 'blah'), but I don't like it as much because it doesn't “scale” nearly as nicely (eg, when you want to accept two or three arguments)...
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Sending images using Http Post

...sily. One other way would be to encode the byte stream from the image to a base64 encoded string and decode it server side. But this would be too much of a hassle in my opinion and not the way to go. – Piro May 30 '10 at 1:16 ...
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Does anyone have benchmarks (code & results) comparing performance of Android apps written in Xamari

...k, with the C# implementation of Android well and truly trouncing the Java-based Dalvik. share | improve this answer | follow | ...
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Most efficient way to reverse a numpy array

... giant chunk of the running time. What I have right now is the common view-based method: 7 Answers ...
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Upgrading PHP in XAMPP for Windows?

...t to point out that I have my PHP version installed as x86, therefore the x64 versions won't work. It is needed to download the correct portable version of Xampp x86 sourceforge.net/projects/xampp/files/XAMPP%20Windows/7.3.2 - You can check if you have x86 or x64 installed with phpinfo() ...
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Simulating tremor (from e.g. Parkinson's Disease) with the mouse on a webpage?

... I made a quick demo of something that you hopefully should be able to base your code on, using the Pointer Lock API. I forked this pointer-lock-demo repo and modified it to add a random movement element. Here is the link to my GitHub page: https://aristocrates.github.io/pointer-lock-demo And ...
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How to template If-Else structures in data-bound views?

I constantly find myself using this idiom in KO-based HTML templates: 4 Answers 4 ...
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Hidden Features of VB.NET?

... 64 Answers 64 Active ...
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Is 23,148,855,308,184,500 a magic number, or sheer chance?

... Shaihi 3,82133 gold badges2323 silver badges4646 bronze badges answered Jul 15 '09 at 19:56 GuffaGuffa 618k9090 gold badges...