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NSUserDefaults - How to tell if a key exists
...l returning nil if the key doesn't exist.
func integerOptional(forKey: String) -> Int? {
return self.object(forKey: forKey) as? Int
}
/// Convenience method to wrap the built-in .double(forKey:) method in an optional returning nil if the key doesn't exist.
func doubleOptio...
nuget 'packages' element is not declared warning
... <xs:complexType>
<xs:attribute name="id" type="xs:string" use="required" />
<xs:attribute name="version" type="xs:string" use="required" />
<xs:attribute name="targetFramework" type="xs:string" use="optional" />
<xs:attri...
How do I decode a URL parameter using C#?
...
string decodedUrl = Uri.UnescapeDataString(url)
or
string decodedUrl = HttpUtility.UrlDecode(url)
Url is not fully decoded with one call. To fully decode you can call one of this methods in a loop:
private static string...
How can I change the default Django date template format?
...orks only if date is provideded as a datetime object. What if it is just a string passed from the view?
– Mohammed Shareef C
Dec 13 '16 at 5:33
3
...
What new capabilities do user-defined literals add to C++?
...roduction of new literal syntax based on existing literals ( int , hex , string , float ) so that any type will be able to have a literal presentation.
...
How to add http:// if it doesn't exist in the URL?
...
Scan the string for ://, if it does not have it, prepend http:// to the string.., everything else just use the string as is.
This will work unless you have rubbish input string.
...
How to replace all dots in a string using JavaScript
I want to replace all the occurrences of a dot( . ) in a JavaScript string
15 Answers
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what is the best way to convert a json formatted key value pair to ruby hash with symbol as key?
...
using the json gem when parsing the json string you can pass in the symbolize_names option. See here: http://flori.github.com/json/doc/index.html (look under parse)
eg:
>> s ="{\"akey\":\"one\",\"bkey\":\"two\"}"
>> JSON.parse(s,:symbolize_names => ...
Correct approach to global logging in Golang
...mport (
"log"
"os"
"sync"
)
type logger struct {
filename string
*log.Logger
}
var logger *logger
var once sync.Once
// start loggeando
func GetInstance() *logger {
once.Do(func() {
logger = createLogger("mylogger.log")
})
return logger
}
func createLogger...
Should operator
...ostream>
class Paragraph
{
public:
explicit Paragraph(std::string const& init)
:m_para(init)
{}
std::string const& to_str() const
{
return m_para;
}
bool operator==(Paragraph const& rhs) const
{
...