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Value Change Listener to JTextField
...cumentListener can, sometime, receive two events. For instance if the user selects the whole field content, then press a key, you'll receive a removeUpdate (all the content is remove) and an insertUpdate.
In your case, I don't think it is a problem but, generally speaking, it is.
Unfortunately, it s...
How can I expand and collapse a using javascript?
... I will get rid of it and just use a border. This is excellent because it selects the div to expand relative to the header I've clicked, which is important because of the fact that I may have several different numbers of listed items depending on user settings and other factors.
...
Is “IF” expensive?
...nation on Cell Performance. Another fun one is this post about branchless selections on the Real Time Collision Detection Blog.
In addition to the excellent answers already posted in response to this question, I'd like to put in a reminder that although "if" statements are considered expensive low...
Bold & Non-Bold Text In A Single UILabel?
...59"
We only need to create the attributed string:
if ([_label respondsToSelector:@selector(setAttributedText:)])
{
// iOS6 and above : Use NSAttributedStrings
// Create the attributes
const CGFloat fontSize = 13;
NSDictionary *attrs = @{
NSFontAttributeName:[UIFont boldSy...
count the frequency that a value occurs in a dataframe column
...iple columns in a df
[my_series[c].value_counts() for c in list(my_series.select_dtypes(include=['O']).columns)]
https://stackoverflow.com/a/28192263/786326
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Java's Interface and Haskell's type class: differences and similarities?
... class to other classes, define static methods and constructors that would select an implementation based on what return type is required in calling context, define methods that take arguments of the same type as the class implementing the interface, and various other things that don't really transl...
How to make MySQL handle UTF-8 properly
...til just recently), and not complete (does not discuss correctly inserting/selecting utf8-encoded data, nor displaying in html).
– Rick James
Jan 20 '16 at 3:28
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Eclipse IDE for Java - Full Dark Theme
...sor is black - is there anyway to change it to white so it is visible when selecting code?
– Filth
May 28 '14 at 5:34
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use Winmerge inside of Git to file diff
...GI, which allows you to review the list of files with a difference, before selecting one to examine its internal differences.
I have tweaked it to use only DOS commands
@echo off
setlocal
if "%1" == "-?" (
echo GitDiff - enables diffing of file lists, instead of having to serially
echo d...
Threading in a PyQt application: Use Qt threads or Python threads?
...have you considered non-blocking I/O using Twisted or non-blocking sockets/select?
EDIT: more on threads
Python threads
Python's threads are system threads. However, Python uses a global interpreter lock (GIL) to ensure that the interpreter is only ever executing a certain size block of byte-code...