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Two single-column indexes vs one two-column index in MySQL?
...lly, it would just add php overhead. Also, the new key would be a (longer) string instead of a (shorter) integer.
– Tom
Feb 28 '10 at 4:35
add a comment
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Disable assertions in Python
...
$ python -c "assert False"
Traceback (most recent call last):
File "<string>", line 1, in <module>
AssertionError
Note that by disable I mean it also does not execute the expression that follows it:
$ python -Oc "assert 1/0"
$ python -c "assert 1/0"
Traceback (most recent call las...
Python's “in” set operator
...
This is not a very good test since string constants are often interned (try a = 'a'; b = 'a'; a is b). I tried it with a = (1, 2, 3); b = (1, 2, 3); a == b; hash(a) == hash(b); a is b; a in set([b]) instead.
– Philipp
Jan...
How do we use runOnUiThread in Android?
...then call this function from your background thread.
public void debugMsg(String msg) {
final String str = msg;
runOnUiThread(new Runnable() {
@Override
public void run() {
mInfo.setText(str);
}
});
}
...
Suppress/ print without b' prefix for bytes in Python 3
...t that will print as wish. In particular, repr(b'\x01')[2:-1] returns the string \\x01, while decode() will return \x01 which does not work as one would wish with print(). To be even more explicit, print(repr(b'\x01')[2:-1]) will print \x01 while print(b'\x01'.decode()) will not print anything.
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Access to Modified Closure
... probably looks something like:
private sealed class Closure
{
public string[] files;
public int i;
public bool YourAnonymousMethod(string name)
{
return name.Equals(this.files[this.i]);
}
}
As mentioned above, your function works because the predicates are invoked im...
How can I read a function's signature including default argument values?
...value)
def get_method_sig(method):
""" Given a function, it returns a string that pretty much looks how the
function signature would be written in python.
:param method: a python method
:return: A string similar describing the pythong method signature.
eg: "my_method(first_argA...
Why does C# forbid generic attribute types?
... like [PropertyReference(x => x.SomeProperty)]. Instead, you need magic strings and typeof(), which I think kind of sucks.
– Asbjørn Ulsberg
Jun 25 '11 at 12:38
13
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How to enable local network users to access my WAMP sites?
... by default.
Now you should edit the \wamp\bin\apache\apache{version}\conf\extra\httpd-vhosts.conf file. In WAMPServer3.0.6 and above there is actually a menu that will open this file in your editor
left click wampmanager -> Apache -> httpd-vhost.conf
just like the one that has always existse...
Why is early return slower than else?
...king up are the
same object (which in this case they will be because short strings
that could be identifiers are interned so identical identifiers use
the exact same string).
Finally when the slot is full, the hash matches exactly, but the keys
are not the identical object, then and only then will P...