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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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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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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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How can I create an object and add attributes to it?
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This seems a better solution to me than unittest.mock; the latter is a bit too heavy-weight and a bit more malleable. With a mock object, simply assigning to an attribute will cause it to spring into existence; SimpleNamespace will resist that.
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Displaying better error message than “No JSON object could be decoded”
... @jxramos: The OP used Python 2.7, as evident from the traceback. A quick test on ideone.com (Python 3.7.3) shows that the stdlib json library has been updated and gives the new error message format. I don’t have time to track exact releases right now however.
– Martijn Piet...