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Why does C# allow {} code blocks without a preceding statement?
...You could say it all comes down to the fact that USA programme language (C based) design won rather than European programme language (Modula-2 based) design.
(Control statements act on a single statement, statements can be groups to create new statements)
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Python int to binary string?
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For a more general philosophy, no language or library will give its user base everything that they desire. If you're working in an environment that doesn't provide exactly what you need, you should be collecting snippets of code as you develop to ensure you never have to write the same thing twice...
XmlSerializer giving FileNotFoundException at constructor
...} else { Fallback } instead of try { Load } catch { Fallback }. Exception-based flow control smells bad and makes my debugging experience more difficult and brittle than necessary.
– Timbo
Jul 28 '15 at 22:19
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Drawing a connecting line between two elements [closed]
...worked perfectly...
first of all, Scalable Vector Graphics (SVG) is an XML-based vector image format for two-dimensional graphics with support for interactivity and animation. SVG images and their behaviors are defined in XML text files. you can create an svg in HTML using <svg> tag. Adobe Ill...
How to find difference between two Joda-Time DateTimes in minutes
...d will need to compute the amount of time between now and some future time based on a date from another time zone. I will report back what I find.
– Doo Dah
Apr 21 '16 at 1:29
2
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How to generate random SHA1 hash to use as ID in node.js?
... do this by generating 1 million random numbers and incrementing a counter based on the .length of each number.
// get distribution
var counts = [], rand, len;
for (var i=0; i<1000000; i++) {
rand = Math.random();
len = String(rand).length;
if (counts[len] === undefined) counts[len] = 0;
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What are the benefits to marking a field as `readonly` in C#?
...is a potential case where the compiler can make a performance optimization based on the presence of the readonly keyword.
This only applies if the read-only field is also marked as static. In that case, the JIT compiler can assume that this static field will never change. The JIT compiler can take t...
What does “%.*s” mean in printf?
...ll terminator, for example a string which is input from any stream or file based source. Which is far more often the use case I have encountered, than merely print prettines.
– Conrad B
Oct 24 '18 at 8:04
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On logout, clear Activity history stack, preventing “back” button from opening logged-in-only Activi
...f you previously left that original instance of LoginActivity alive at the base of your stack. If, like many programmers, you chose to finish() that LoginActivity once the user has successfully logged in, then it's no longer on the base of the stack and the FLAG_ACTIVITY_CLEAR_TOP semantics do not a...
What is the difference between instanceof and Class.isAssignableFrom(…)?
... performance:
isInstance
instanceof (+ 0.5%)
isAssignableFrom (+ 2.7%)
Based on a benchmark of 2000 iterations on JAVA 8 Windows x64, with 20 warmup iterations.
In theory
Using a soft like bytecode viewer we can translate each operator into bytecode.
In the context of:
package foo;
public c...