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How does setting baselineAligned to false improve performance in LinearLayout?
...
By setting android:baselineAligned="false" , you're preventing the extra work your app's layout has to do in order to Align its children's baselines; which can obviously increase the performance. (Fewer unnecessary operations on UI => Better performance)
...
Unexpected Caching of AJAX results in IE8
...e
});
which will cause jQuery to add a random value to the request query string, thereby preventing IE from caching the response.
Note that if you have other Ajax calls going on where you do want caching, this will disable it for those too. In that case, switch to using the $.ajax() method and en...
Differences between “BEGIN RSA PRIVATE KEY” and “BEGIN PRIVATE KEY”
... Version,
algorithm AlgorithmIdentifier,
PrivateKey BIT STRING
}
AlgorithmIdentifier ::= SEQUENCE {
algorithm OBJECT IDENTIFIER,
parameters ANY DEFINED BY algorithm OPTIONAL
}
So for an RSA private key, the OID is 1.2.840.113549.1.1.1 and there is a RSAPrivat...
When should I use ugettext_lazy?
...y executed once (mostly on django's startup); ugettext_lazy translates the strings in a lazy fashion, which means, eg. every time you access the name of an attribute on a model the string will be newly translated-which totally makes sense because you might be looking at this model in different langu...
Difference between len() and .__len__()?
...ther than raising an exception". I tried this: def len(x): return "I am a string." print(len(42)) print(len([1,2,3])) and it printed I am string twice. Can you explain it more?
– Darek Nędza
May 3 '14 at 8:19
...
How does the Comma Operator work
...’t work since then the compiler just sees the comma operator between two char[], which cannot be overloaded. The code intentionally first calls the operator= and then subsequently operator, for each remaining element.
– Konrad Rudolph
Oct 9 '11 at 11:04
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New features in java 7
.../ code
}
Underscores in numeric literals
int one_million = 1_000_000;
Strings in switch
String s = ...
switch(s) {
case "quux":
processQuux(s);
// fall-through
case "foo":
case "bar":
processFooOrBar(s);
break;
case "baz":
processBaz(s);
// fall-through
def...
Can I find out the return value before returning while debugging in Eclipse?
... the parent class and do my debugging in the wrapper/child class. It takes extra work though.
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Why should eval be avoided in Bash, and what should I use instead?
...not been rewritten as safe-for-use-in-situation-XYZ; in our case, it's any string that has not been formatted so as to be safe for evaluation.
Sanitizing data appears easy at first glance. Assuming we're throwing around a list of options, bash already provides a great way to sanitize individual el...
How to group time by hour or by 10 minutes
...ind of guy)
In Oracle:
SELECT timeslot, COUNT(*)
FROM
(
SELECT to_char(l_time, 'YYYY-MM-DD hh24') timeslot
FROM
(
SELECT l_time FROM mytab
)
) GROUP BY timeslot
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