大约有 10,000 项符合查询结果（耗时：0.0204秒） [XML]
Objective-C pass block as parameter
... // your code
}
Example
-(void) saveWithCompletionBlock: (void (^)(NSArray *elements, NSError *error))completionBlock{
// your code
}
Other use of cases:
2. Block as a Property
Template
@property (nonatomic, copy) returnType (^blockName)(parameters);
Example
@property (nonatomi...
Encode String to UTF-8
... Technically speaking, byte[] doesn't have any encoding. Byte array PLUS encoding can give you string though.
– Peter Štibraný
Apr 20 '11 at 14:34
...
How many characters can a Java String have?
...3,647 (231 - 1)
(Defined by the Java specification, the maximum size of an array, which the String class uses for internal storage)
OR
Half your maximum heap size (since each character is two bytes) whichever is smaller.
...
Rotating a two-dimensional array in Python
In a program I'm writing the need to rotate a two-dimensional array came up. Searching for the optimal solution I found this impressive one-liner that does the job:
...
Can not deserialize instance of java.util.ArrayList out of START_OBJECT token
...efault, be deserialized into a Collection because it's not actually a JSON Array - that would look like this:
[
{
"name": "Test order1",
"detail": "ahk ks"
},
{
"name": "Test order2",
"detail": "Fisteku"
}
]
Since you're not controlling the exact p...
Why would iterating over a List be faster than indexing through it?
...l, which is O(N).
Now, going to the other implementation of List which is ArrayList, that one is backed by a simple array. In that case both of the above traversals are equivalent, since an array is contiguous so it allows random jumps to arbitrary positions.
...
How to find a min/max with Ruby
...ncludes Enumerable will have those methods available.
v2.4 introduces own Array#min and Array#max, which are way faster than Enumerable's methods because they skip calling #each.
@nicholasklick mentions another option, Enumerable#minmax, but this time returning an array of [min, max].
[4, 5, 7, 1...
How to send and retrieve parameters using $state.go toParams and $stateParams?
...as a URL parameter, then that parameter needs to be included in the params array.
– ivarni
Jul 28 '14 at 11:02
5
...
How do I check that a number is float or integer?
...ing, a string representing an integral number, true, false, null, an empty array, an array containing a single integral number, an array containing a string representing an integral number, and maybe more.
– Dagg Nabbit
Oct 8 '10 at 16:53
...
How to get innerHTML of DOMNode?
...ctional programming style:
function innerHTML($node) {
return implode(array_map([$node->ownerDocument,"saveHTML"],
iterator_to_array($node->childNodes)));
}
share
|
...