大约有 20,000 项符合查询结果（耗时：0.0302秒） [XML]
Modifying a query string without reloading the page
...aid. Here it is an example that might help you to implement it properly. I tested and it worked fine:
if (history.pushState) {
var newurl = window.location.protocol + "//" + window.location.host + window.location.pathname + '?myNewUrlQuery=1';
window.history.pushState({path:newurl},'',newur...
C# Sort and OrderBy comparison
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Note also that the test here sorts the list before starting the stopwatch, so we are comparing how the two algorithms compare when faced with sorted input. This may be quite different than their relative performance with unsorted input.
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Given a class, see if instance has method (Ruby)
...ng instance_methods and include? when method_defined? does the job.
class Test
def hello; end
end
Test.method_defined? :hello #=> true
NOTE
In case you are coming to Ruby from another OO language OR you think that method_defined means ONLY methods that you defined explicitly with:
def my_...
Intersection and union of ArrayLists in Java
...ethods don't modify the original lists input to the methods.
public class Test {
public static void main(String... args) throws Exception {
List<String> list1 = new ArrayList<String>(Arrays.asList("A", "B", "C"));
List<String> list2 = new ArrayList<String&...
How would you count occurrences of a string (actually a char) within a string?
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@Mark Just tested it with a for loop and it was actually slower than using foreach. Could be because of bounds-checking? (Time was 1.65 sec vs 2.05 on 5 mil iterations.)
– Measuring
Dec 13 '16 at 9...
How to replace a hash key with another key
... key in hash then we can do it as follows:
Suppose my hash is my_hash = {'test' => 'ruby hash demo'}
Now I want to replace 'test' by 'message', then:
my_hash['message'] = my_hash.delete('test')
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HTML5 Audio stop function
...request, the old one is cancelled and our audio element is in clean state (tested in Chrome and FF) :>
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Bootstrap: Position of dropdown menu relative to navbar item
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I tested pull-right and pull-left in RTL website. They work perfect, but dropdown-menu-right and dropdown-menu-left not.
– curious1
Jan 7 '15 at 4:41
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Finding out whether a string is numeric or not
...nd "a valid integer representation". Furthermore, it did exactly that in a test on iOS 4.3.2. However, NSNumberFormatter did return nil.
– Tommy
May 23 '11 at 10:56
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Quicksort vs heapsort
...? What Quicksort has that is so special over others implementations?
I've tested the algorithms myself and I've seen that Quicksort has something special indeed. It runs fast, much faster than Heap and Merge algorithms.
The secret of Quicksort is: It almost doesn't do unnecessary element swaps. Sw...