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Direct casting vs 'as' operator?
...
string s = (string)o; // 1
Throws InvalidCastException if o is not a string. Otherwise, assigns o to s, even if o is null.
string s = o as string; // 2
Assigns null to s if o is not a string or if o is null. For this rea...
Removing fields from struct or hiding them in JSON Response
...ing would want, but it's not the answer to the question.
I'd use a map[string]interface{} instead of a struct in this case. You can easily remove fields by calling the delete built-in on the map for the fields to remove.
That is, if you can't query only for the requested fields in the first pla...
How to test that no exception is thrown?
...mple code:
public class Printer {
public static void printLine(final String line) {
System.out.println(line);
}
}
What kind of assertion can be added to test this method?
Sure, you can make a try-catch around it, but that is only code bloat.
The solution comes from JUnit itself....
Regex not operator
Is there an NOT operator in Regexes?
Like in that string : "(2001) (asdf) (dasd1123_asd 21.01.2011 zqge)(dzqge) name (20019)"
...
How to filter out files by extension in NERDTree?
...nageable.
NERDTree has a mechanism to detect and highlight files with the extra execute bit, where -rwxr-xr-x displays in bold with a "*" at the end of the filename. It would not be hard to add an extra mechanism to hide executable files (useful for compiled stuff, not so desirable for scripts).
...
How do I read from parameters.yml in a controller in symfony2?
...
final class ApiController extends SymfonyController
{
/**
* @var string
*/
private $apiPass;
/**
* @var string
*/
private $apiUser;
public function __construct(string $apiPass, string $apiUser)
{
$this->apiPass = $apiPass;
$this->...
How to reliably open a file in the same directory as a Python script
...tively or if the script is read from standard input), path[0] is the empty string, which directs Python to search modules in the current directory first. Notice that the script directory is inserted before the entries inserted as a result of PYTHONPATH.
sys.path[0] is what you are looking for.
...
How to redirect 404 errors to a page in ExpressJS?
...r code but using res.json will do some magic in auto-converting objects to strings where .send() won't. Better safe than sorry. expressjs.com/api.html#res.json
– wgp
Dec 12 '14 at 18:54
...
Stack smashing detected
...s protection variables (called canaries) which have known values. An input string of size greater than 10 causes corruption of this variable resulting in SIGABRT to terminate the program.
To get some insight, you can try disabling this protection of gcc using option -fno-stack-protector while co...
What does send() do in Ruby?
...eed to read attributes on an object.
For example, if you have an array of strings, if you try to iterate through them and call them on your object, it won't work.
atts = ['name', 'description']
@project = Project.first
atts.each do |a|
puts @project.a
end
# => NoMethodError: undefined method ...