大约有 7,000 项符合查询结果（耗时：0.0195秒） [XML]
Is Java's assertEquals method reliable?
...r with something written on it. Let's say I have two pieces of paper with "Foo" written on them, and another with "Bar" written on it. If I take the first two pieces of paper and use == to compare them it will return false because it's essentially asking "are these the same piece of paper?". It does...
What does the number in parentheses shown after Unix command names in manpages mean?
...
Key bit of info: to access a man page given as "foo(5)": man 5 foo
– Steve Bennett
Sep 17 '15 at 5:16
3
...
Is there a simple way to convert C++ enum to string?
...ontext="_1" location="f0:1" file="f0" line="1">
<EnumValue name="FOO" init="0"/>
<EnumValue name="BAR" init="80"/>
</Enumeration>
<File id="f0" name="my_enum.h"/>
</GCC_XML>
You could use any language you prefer to pull out the Enumeration and EnumValue...
Best way to store a key=>value array in JavaScript?
...rts it (IE9 and up), it is safer to create the empty object first with var foo = Object.create(null) and then add properties to it like foo.bar = "baz". Creating an object with {} is equivalent to Object.create(Object.prototype), which means that it inherits all properties of Object. Normally that i...
When do we have to use copy constructors?
...lass:
class Erroneous
{
public:
Erroneous();
// ... others
private:
Foo* mFoo;
Bar* mBar;
};
Erroneous::Erroneous(): mFoo(new Foo()), mBar(new Bar()) {}
What happens if new Bar throws ? How do you delete the object pointed to by mFoo ? There are solutions (function level try/catch ...), ...
How to pass anonymous types as parameters?
... (when extracting data) is to also pass a selector - i.e. something like:
Foo<TSource, TValue>(IEnumerable<TSource> source,
Func<TSource,string> name) {
foreach(TSource item in source) Console.WriteLine(name(item));
}
...
Foo(query, x=>x.Title);
...
In Perl, how can I read an entire file into a string?
...
local $foo = undef is just the Perl Best Practice (PBP) suggested method. If we are posting snippits of code I'd think doing our best to make it clear would be A Good Thing.
– Danny
Jun 5 '09 a...
What JSON library to use in Scala? [closed]
...:
import com.owlike.genson.defaultGenson_
val json = toJson(Person(Some("foo"), 99))
val person = fromJson[Person]("""{"name": "foo", "age": 99}""")
case class Person(name: Option[String], age: Int)
Disclaimer: I am Gensons author, but that doesn't meen I am not objective :)
...
JavaScript hashmap equivalent
...he following script,
var map = new Map;
map.put('spam', 'eggs').
put('foo', 'bar').
put('foo', 'baz').
put({}, 'an object').
put({}, 'another object').
put(5, 'five').
put(5, 'five again').
put('5', 'another five');
for(var i = 0; i++ < map.size; map.next())
docu...
When to use -retainCount?
...1] would have a retainCount of 1. It doesn't. It's 2.
You'd think that @"Foo" would have a retainCount of 1. It doesn't. It's 1152921504606846975.
You'd think that [NSString stringWithString:@"Foo"] would have a retainCount of 1. It doesn't. Again, it's 1152921504606846975.
Basically, since ...