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How can I convert an image into Base64 string using JavaScript?

...); var dataURL; canvas.height = this.naturalHeight; canvas.width = this.naturalWidth; ctx.drawImage(this, 0, 0); dataURL = canvas.toDataURL(outputFormat); callback(dataURL); }; img.src = src; if (img.complete || img.complete === undefined) { img.src = "dat...
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Inherit from a generic base class, apply a constraint, and implement an interface in C#

...s pretty much just a subtle convenience. I suppose it also lets you subtly call out when a type declaration is ending vs say a method body declaration. – Eric Lippert Jan 6 '10 at 0:21 ...
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The definitive guide to form-based website authentication [closed]

...re ways of dealing with it seamlessly that don't require a CAPTCHA, specifically properly designed server-side login throttling schemes - we'll discuss those later. Know that CAPTCHA implementations are not created alike; they often aren't human-solvable, most of them are actually ineffective agains...
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How to get jQuery dropdown value onchange event

... If you have simple dropdown like: <select name="status" id="status"> <option value="1">Active</option> <option value="0">Inactive</option> </select> Then you can use this code for getting value: $(function(){ $("#status").change(functi...
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Is there a way to style a TextView to uppercase all of its letters?

... One of the answers on the linked question suggests 'android:textAllCaps="true"' This worked for me. – blaffie Jun 26 '13 at 17:56 ...
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Should I call Close() or Dispose() for stream objects?

... StreamWriter etc implements IDisposable interface. That means, we can call Dispose() method on objects of these classes. They've also defined a public method called Close() . Now that confuses me, as to what should I call once I'm done with objects? What if I call both? ...
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Difference between class and type

...rializable Examples of array types: int[] String[] Integer[][][] Basically, anything that you can refer to as a variable has a type, and classes are a kind of a type. More info here: http://docs.oracle.com/javase/specs/jls/se8/html/jls-4.html ...
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Can I call a base class's virtual function if I'm overriding it?

...r : public Foo { // ... void printStuff() { Foo::printStuff(); // calls base class' function } }; share | improve this answer | follow | ...
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JavaScript displaying a float to 2 decimal places

... @Hankrecords what you said is not true. If i have '43.01' and I parseFloat then i get 43.01 BUT if i have '43.10' i will get 43.1 :D not what I want. – Lucian Tarna Oct 9 '18 at 15:11 ...
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google mock分享(全网最全最好的gmock文档,没有之一) - C/C++ - 清泛网 ...

... string value = "Hello World!"; MockFoo mockFoo; EXPECT_CALL(mockFoo, getArbitraryString()).Times(1). WillOnce(Return(value)); string returnValue = mockFoo.getArbitraryString(); cout << "Returned Value: " << returnValue << endl; retur...