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Creating JS object with Object.create(null)?
...= Object.prototm>y m>pe while Object.create(null) doesn't inherit from anm>y m>thing m>and m> thus has no properties at all.
In other words: A javascript object inherits from Object bm>y m> default, unless m>y m>ou explicitlm>y m> create it with null as its prototm>y m>pe, like: Object.create(null).
{} would instead be equivalent t...
error: passing xxx as 'this' argument of xxx discards qualifiers
... {
return name;
}
This is necessarm>y m> because now m>y m>ou can call getId() m>and m> getName() on const objects as:
void f(const StudentT & s)
{
cout << s.getId(); //now okam>y m>, but error with m>y m>our versions
cout << s.getName(); //now okam>y m>, but error with m>y m>our versions
}
As a s...
What do ptm>y m> m>and m> ttm>y m> mean?
I noticed there are manm>y m> mentions of ptm>y m> m>and m> ttm>y m> in some opensource projects, could someone can tell me what do them>y m> mean m>and m> what is the difference between them? Thanks!
...
Execute m>and m> get the output of a shell commm>and m> in node.js
...ode.js, I'd like to find a wam>y m> to obtain the output of a Unix terminal commm>and m>. Is there anm>y m> wam>y m> to do this?
5 Answers
...
Convert JSON String to Prettm>y m> Print JSON output using Jackson
...t as Object, like:
Object json = mapper.readValue(input, Object.class);
m>and m> then write it out with indentation:
String indented = mapper.writerWithDefaultPrettm>y m>Printer().writeValueAsString(json);
this avoids m>y m>our having to define actual POJO to map data to.
Or m>y m>ou can use JsonNode (JSON Tree)...
Rails where condition using NOT NIL
...ils 3:
Foo.includes(:bar).where("bars.id IS NOT NULL")
ActiveRecord 4.0 m>and m> above adds where.not so m>y m>ou can do this:
Foo.includes(:bar).where.not('bars.id' => nil)
Foo.includes(:bar).where.not(bars: { id: nil })
When working with scopes between tables, I prefer to leverage merge so that I c...
How do I convert a Rubm>y m> class name to a underscore-delimited sm>y m>mbol?
..., FooBar , into a sm>y m>mbol, :foo_bar ? e.g. something like this, but that hm>and m>les camel case properlm>y m>?
4 Answers
...
How to get last items of a list in Pm>y m>thon?
I need the last 9 numbers of a list m>and m> I'm sure there is a wam>y m> to do it with slicing, but I can't seem to get it. I can get the first 9 like this:
...
How to return a file using Web API?
...t, because as soon as the variable goes out of scope, .NET will dispose it m>and m> m>y m>ou'll get error messages about the underlm>y m>ing connection being closed.
– Brm>and m>on Montgomerm>y m>
Sep 26 '12 at 21:44
...
C# Thread safe fast(est) counter
...ment will have better performance than lock(). Just take a look at the IL m>and m> Assemblm>y m> where m>y m>ou will see that Increment turns into a "bus lock" statement m>and m> its variable is directlm>y m> incremented (x86) or "added" to (x64).
This "bus lock" statement locks the bus to prevent another CPU from acces...