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Best way to test if a row exists in a MySQL table
...: what happens when the statement is executed? I mean what does the result set contain?
– Ashwin
Nov 4 '12 at 11:37
13
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Best way to compare two complex objects
...public class Person : IEquatable<Person>
{
public int Age { get; set; }
public string FirstName { get; set; }
public Address Address { get; set; }
public override bool Equals(object obj)
{
return this.Equals(obj as Person);
}
public bool Equals(Person othe...
How do I send a cross-domain POST request via JavaScript?
...ng POSTed, simply leverage the "Cross-Origin Resource Sharing standard" by setting response headers on the server. This answer is discussed in other answers in this thread, but not very clearly in my opinion.
In short here is how you accomplish the cross domain POST from from.com/1.html to to.com/...
Is there a cross-browser onload event when clicking the back button?
...my js was not executing when the user had clicked back or forward. I first set out to stop the browser from caching, but this didn't seem to be the problem. My javascript was set to execute after all of the libraries etc. were loaded. I checked these with the readyStateChange event.
After some test...
json_encode is returning NULL?
... bet you are retrieving data in non-utf8 encoding: try to put mysql_query('SET CHARACTER SET utf8') before your SELECT query.
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MySQL case insensitive select
...E1234" and "ge1234", they needed to be unique and stay logged that way. We set our column in create table statement this way instead: varchar(20) CHARACTER SET utf8 COLLATE utf8_bin
– gregthegeek
Mar 19 '14 at 18:56
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Java maximum memory on Windows XP
I've always been able to allocate 1400 megabytes for Java SE running on 32-bit Windows XP (Java 1.4, 1.5 and 1.6).
13 Answe...
Simple way to find if two different lists contain exactly the same elements?
... want to check independent of order, you could copy all of the elements to Sets and use equals on the resulting Sets:
public static <T> boolean listEqualsIgnoreOrder(List<T> list1, List<T> list2) {
return new HashSet<>(list1).equals(new HashSet<>(list2));
}
A lim...
Is memcached a dinosaur in comparison to Redis? [closed]
...O is sometimes needed). This operations are often as fast as plain GET and SET. So if you don't need just GET/SET but more complex things Redis can help a lot (think at timeline caching).
Without an use case is hard to pick the right now, but I think that for a lot of things Redis makes sense sinc...
log messages appearing twice with Python Logging
...ogger.
Try tracing calls to that method and eliminating one of these. Or set up a flag logging_initialized initialized to False in the __init__ method of Boy and change configure_logging to do nothing if logging_initialized is True, and to set it to True after you've initialized the logger.
If y...