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Should I use string.isEmpty() or “”.equals(string)?
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The main benefit of "".equals(s) is you don't need the null check (equals will check its argument and return false if it's null), which you seem to not care about. If you're not worried about s being null (or are otherwise checking for it)...
Install tkinter for Python
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It is not very easy to install Tkinter locally to use with system-provided Python. You may build it from sources, but this is usually not the best idea with a binary package-based distro you're apparently running.
It's safer...
Creating Unicode character from its number
I want to display a Unicode character in Java. If I do this, it works just fine:
13 Answers
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Compiler Ambiguous invocation error - anonymous method and method group with Func or Action
...s is one of the hairiest parts of the spec, so good on Jon for diving into it head first.
Second, let me say that this line:
An implicit conversion exists from a method group to a compatible delegate type
(emphasis added) is deeply misleading and unfortunate. I'll have a talk with Mads about...
Javascript: Setting location.href versus location
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You might set location directly because it's slightly shorter. If you're trying to be terse, you can usually omit the window. too.
URL assignments to both location.href and location are defined to work in JavaScript 1.0, back in Netscape 2, and have been implement...
Converting Symbols, Accent Letters to English Alphabet
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Reposting my post from How do I remove diacritics (accents) from a string in .NET?
This method works fine in java (purely for the purpose of removing diacritical marks aka accents).
It basically converts all accented characters into their deAccented counterparts foll...
Launch custom android application from android browser
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Use an <intent-filter> with a <data> element. For example, to handle all links to twitter.com, you'd put this inside your <activity> in your AndroidManifest.xml:
<intent-filter>
<data android:scheme="http" android:host="twi...
How can I copy the output of a command directly into my clipboard?
How can I pipe the output of a command into my clipboard and paste it back when using a terminal? For instance:
17 Answers
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Coding Practices which enable the compiler/optimizer to make a faster program
...d K&R invented the register keyword, to hint to the compiler, that maybe it would be a good idea to keep this variable in an internal register. They also made the tertiary operator to help generate better code.
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SecItemAdd and SecItemCopyMatching returns error code -34018 (errSecMissingEntitlement)
... and can't be consistently reproduced. (happens maybe 30% of the time, and it's not clear to me why it happens). What makes debugging this problem very difficult is the total lack of documentation. Any idea what causes this and how to fix it? I'm using Xcode 5 and running iOS 7.0.4 on device.
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