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Encoding an image file with base64

... here is an update after you have edited your original question. First of all, remember to use raw strings (prefix the string with 'r') when using path delimiters on Windows, to prevent accidentally hitting an escape character. Second, PIL's Image.open either accepts a filename, or a file-like (tha...
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How do you set EditText to only accept numeric values in Android?

... This will not allow you to put negative numbers and at same time it will allow duplicate decimals.(ex: 1.1.1.....) – Rushi Ayyappa Apr 7 '16 at 9:40 ...
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How to run a PowerShell script from a batch file

... would have otherwise. In a way it's merely a convenience to avoid accidentally running things you may not want to run. Similar to having to prefix commands in the current directory with ./ and having an executable flag on Unix. – Joey Nov 6 '16 at 14:26 ...
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usr/bin/ld: cannot find -l

... @ZoOo that shouldn't normally matter, the linker can work with either one – djf May 23 '13 at 9:48 ...
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Toggle button using two image on different state

...android:background="@null" and android:drawableRight="@drawable/check". Usually I've found toggle buttons are right-justified. If you need it left-justified, use android:drawableLeft – Patrick Jun 1 '15 at 10:39 ...
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Event handling for iOS - how hitTest:withEvent: and pointInside:withEvent: are related?

...lementation of hitTest:withEvent: in UIResponder does the following: It calls pointInside:withEvent: of self If the return is NO, hitTest:withEvent: returns nil. the end of the story. If the return is YES, it sends hitTest:withEvent: messages to its subviews. it starts from the top-level subview, ...
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What is the maximum size of a web browser's cookie's key?

...rt most browsers, I suggest keeping the name under 4000 bytes, and the overall cookie size under 4093 bytes. One thing to be careful of: if the name is too big you cannot delete the cookie (at least in JavaScript). A cookie is deleted by updating it and setting it to expire. If the name is too big,...
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Is using a lot of static methods a bad thing?

I tend to declare as static all the methods in a class when that class doesn't require to keep track of internal states. For example, if I need to transform A into B and don't rely on some internal state C that may vary, I create a static transform. If there is an internal state C that I want to be ...
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Prevent RequireJS from Caching Required Scripts

RequireJS seems to do something internally that caches required javascript files. If I make a change to one of the required files, I have to rename the file in order for the changes to be applied. ...
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Why java.io.File doesn't have a close() method?

...) method java.io.File doesn't. Why is that? Is the file closed automatically on finalization or something? 5 Answers ...