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Is it bad practice to make a setter return “this”?
...builder pattern or a fluent interface.
It's also common in the Java API:
String s = new StringBuilder().append("testing ").append(1)
.append(" 2 ").append(3).toString();
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Round to at most 2 decimal places (only if necessary)
... drops any "extra" zeroes at the end.
// It changes the result (which is a string) into a number again (think "0 + foo"),
// which means that it uses only as many digits as necessary.
It seems like Math.round is a better solution. But it is not! In some cases it will NOT round correctly:
Math.round...
What is a Windows Handle?
...ust made up, and assume that Widget is a struct.
Widget * GetWidget (std::string name)
{
Widget *w;
w = findWidget(name);
return w;
}
void * GetWidget (std::string name)
{
Widget *w;
w = findWidget(name);
return reinterpret_cast<void *>(w);
}
typedef void * HAN...
JQuery: How to call RESIZE event only once it's FINISHED resizing?
...se it like any other on or bind-event handler, except that you can pass an extra parameter as a last:
$(window).on('resize', function(e) {
console.log(e.type + '-event was 200ms not triggered');
}, 200);
http://jsfiddle.net/ARTsinn/EqqHx/
...
How do I change the string representation of a Python class? [duplicate]
In Java, I can override the toString() method of my class. Then Java's print function prints the string representation of the object defined by its toString() . Is there a Python equivalent to Java's toString() ?
...
return statement vs exit() in main()
...rn statement. Given the following code:
int foo() {}
int main(int argc, char *argv[]) {}
G++ only generates a warning for foo() and ignores the missing return from main:
% g++ -Wall -c foo.cc
foo.cc: In function ‘int foo()’:
foo.cc:1: warning: control reaches end of non-void function
...
Why does SSL handshake give 'Could not generate DH keypair' exception?
...r = Logger.getLogger(SSLExcludeCipherConnectionHelper.class);
private String[] exludedCipherSuites = {"_DHE_","_DH_"};
private String trustCert = null;
private TrustManagerFactory tmf;
public void setExludedCipherSuites(String[] exludedCipherSuites) {
this.exludedCipherSu...
How to round float numbers in javascript?
...
Convert a number to a string and then back again? That can't be fast.
– csl
Nov 9 '12 at 14:07
...
Find size of an array in Perl
...$size;
The latter looks quite clear alone like this, but I find that the extra line takes away from clarity when part of other code. It's useful for teaching what @array does in scalar context, and maybe if you want to use $size more than once.
...
Why does Node.js' fs.readFile() return a buffer instead of string?
...asis mine):
Why does Node.js' fs.readFile() return a buffer instead of string?
Because files aren't always text
Even if you as the programmer know it: Node has no idea what's in the file you're trying to read. It could be a text file, but it could just as well be a ZIP archive or a JPG image ...