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Forward an invocation of a variadic function in C
...t.h>
#include <alloca.h>
#include <inttypes.h>
#include <string.h>
/* This macros allow wrapping variadic functions.
* Currently we don't care about floating point arguments and
* we assume that the standard calling conventions are used.
*
* The wrapper function has to star...
Replace all non Alpha Numeric characters, New Lines, and multiple White Space with one Space
...ence between the regex patterns on different browsers with different sized strings.
So basically i used jsPerf on
Testing in Chrome 65.0.3325 / Windows 10 0.0.0
Testing in Edge 16.16299.0 / Windows 10 0.0.0
The regex patterns i tested were
/[\W_]+/g
/[^a-z0-9]+/gi
/[^a-zA-Z0-9]+/g
I load...
Java `final` method: what does it promise?
...calculated value derived from those attributes. A good example is the Java String class.
Reliability and Contract -- Objects are composed of primitives (int, char, double, etc.) and/or other Objects. Not all operations applicable to those components should be applicable or even logical when they are...
How to remove line breaks from a file in Java?
How can I replace all line breaks from a string in Java in such a way that will work on Windows and Linux (ie no OS specific problems of carriage return/line feed/new line etc.)?
...
C++ templates that accept only certain types
...le parenthesis is necessary is that BOOST_STATIC_ASSERT is a macro and the extra parenthesis prevent the preprocessor from interpreting the comma within the is_base_of function arguments as a 2nd macro argument.
– jfritz42
Aug 13 '15 at 19:29
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Convert hyphens to camel case (camelCase)
...
Try this:
var camelCased = myString.replace(/-([a-z])/g, function (g) { return g[1].toUpperCase(); });
The regular expression will match the -i in marker-image and capture only the i. This is then uppercased in the callback function and replaced.
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How to convert an Int to a String of a given length with leading zeros to align?
How can I convert an Int to a 7-character long String , so that 123 is turned into "0000123" ?
7 Answers
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When should I use File.separator and when File.pathSeparator?
In the File class there are two strings, separator and pathSeparator .
3 Answers
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How to read a single char from the console in Java (as the user types it)?
...jCurses might be interesting, though.
On a Unix system, this might work:
String[] cmd = {"/bin/sh", "-c", "stty raw </dev/tty"};
Runtime.getRuntime().exec(cmd).waitFor();
For example, if you want to take into account the time between keystrokes, here's sample code to get there.
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Regex match everything after question mark?
...entheses are a capturing group that you can use to extract the part of the string you are interested in.
If the string can contain new lines you may have to use the "dot all" modifier to allow the dot to match the new line character. Whether or not you have to do this, and how to do this, depends o...