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Replace part of a string with another string
...start_pos += to.length(); // In case 'to' contains 'from', like replacing 'x' with 'yx'
}
}
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How to simulate a mouse click using JavaScript?
... prototype.js)
function simulate(element, eventName)
{
var options = extend(defaultOptions, arguments[2] || {});
var oEvent, eventType = null;
for (var name in eventMatchers)
{
if (eventMatchers[name].test(eventName)) { eventType = name; break; }
}
if (!eventType)
...
Prevent dialog dismissal on screen rotation in Android
... problem nowadays is by using a DialogFragment.
Create a new class which extends DialogFragment. Override onCreateDialog and return your old Dialog or an AlertDialog.
Then you can show it with DialogFragment.show(fragmentManager, tag).
Here's an example with a Listener:
public class MyDialogFrag...
What is ANSI format?
...ertain other Windows code pages on other systems.) This is essentially an extension of the ASCII character set in that it includes all the ASCII characters with an additional 128 character codes. This difference is due to the fact that "ANSI" encoding is 8-bit rather than 7-bit as ASCII is (ASCII is...
Java generics - why is “extends T” allowed but not “implements T”?
I wonder if there is a special reason in Java for using always " extends " rather than " implements " for defining bounds of typeparameters.
...
How to create a CPU spike with a bash command
I want to create a near 100% load on a Linux machine. It's quad core system and I want all cores going full speed. Ideally, the CPU load would last a designated amount of time and then stop. I'm hoping there's some trick in bash. I'm thinking some sort of infinite loop.
...
How to set Oracle's Java as the default Java in Ubuntu?
...
I put the line:
export JAVA_HOME=/usr/lib/jvm/java-7-oracle
in my ~/.bashrc file.
/usr/lib/jvm/java7-oracle should be a symbolic link pointing to /usr/lib/jvm/java-7-oracle-[version number here].
The reason it's a symbolic link is that in...
Android TextView Justify Text
How do you get the text of a TextView to be Justified (with text flush on the left- and right- hand sides)?
27 Answers
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MySQL - SELECT WHERE field IN (subquery) - Extremely slow why?
...se IN with a subquery; this is notoriously slow.
Only ever use IN with a fixed list of values.
More tips
If you want to make queries faster,
don't do a SELECT * only select
the fields that you really need.
Make sure you have an index on relevant_field to speed up the equi-join.
Make sure to gr...
Python logging: use milliseconds in time format
...ord.msecs)
return s
Notice the comma in "%s,%03d". This can not be fixed by specifying a datefmt because ct is a time.struct_time and these objects do not record milliseconds.
If we change the definition of ct to make it a datetime object instead of a struct_time, then (at least with modern ...