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Custom circle button

...tc), you will use selector as described here. You've to keep both files in order to make the drawable backward-compatible. Otherwise, you'll face weird exceptions in previous android version. share | ...
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Difference between InvariantCulture and Ordinal string comparison

... InvariantCulture Uses a "standard" set of character orderings (a,b,c, ... etc.). This is in contrast to some specific locales, which may sort characters in different orders ('a-with-acute' may be before or after 'a', depending on the locale, and so on). Ordinal On the other...
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Detecting 'stealth' web-crawlers

...s, you can put a div under another, with CSS (placing it first in the draw order) and possibly setting the z-order. A bot could not ignore that, without parsing all your javascript to see if it is a menu. To some extent, links inside invisible DIV elements also can't be ignored without the bot par...
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Are list-comprehensions and functional functions faster than “for loops”?

...ension, for example, is indeed faster, it would be a much better option in order to avoid lags (Despite the visual complexity of the code). Chances are, if code like this isn't already fast enough when written in good non-"optimized" Python, no amount of Python level micro optimization is going to...
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Transactions in REST?

...ple items to a shopping basket and then submit that basket to process the order, you can add Bob's account entry to the transaction wrapper and then Bill's account entry to the wrapper. When all the pieces are in place then you can POST/PUT the transaction wrapper with all the component pieces. ...
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How does a Breadth-First Search work when looking for Shortest Path?

...a's algorithm adapts BFS to let you find single-source shortest paths. In order to retrieve the shortest path from the origin to a node, you need to maintain two items for each node in the graph: its current shortest distance, and the preceding node in the shortest path. Initially all distances are...
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Eventual consistency in plain English

...ll act surprised when complex objects stored in separate documents like “orders” have less “order items” than expected, or maybe none at all. But it won’t happen often, or often enough so they’ll just march forward. They may not even hit the problem in development. Then, rather than r...
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UnicodeDecodeError when redirecting to file

...ers to bytes is called encoding. Thus, a computer requires an encoding in order to represent characters. Any text present on your computer is encoded (until it is displayed), whether it be sent to a terminal (which expects characters encoded in a specific way), or saved in a file. In order to be ...
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Replacement for “rename” in dplyr

...onious solution but this works and preserves all columns (though not their order). disp does not get duplicated. – farnsy Aug 22 '14 at 3:38 ...
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Why does Python code use len() function instead of a length method?

... len, str, etc. can be used with higher-order functions like map, reduce, and filter without the need to define a function or lambda just to call a method. Not everything revolves around OOP, even in Python. – Evicatos Nov 7 '...