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What is the difference between Strategy design pattern and State design pattern?
...tes store a reference to the context object that contains them. Strategies do not.
States are allowed to replace themselves (IE: to change the state of the context object to something else), while Strategies are not.
Strategies are passed to the context object as parameters, while States are created...
Entity Framework Provider type could not be loaded?
...
I always worry when I type code in that does absolutely nothing and all the sudden my project runs. O_o
– Jordan
Apr 14 '14 at 20:07
10
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How to read a local text file?
...check for status 0 (as when loading files locally with XMLHttpRequest, you don't get a status returned because it's not from a Webserver)
function readTextFile(file)
{
var rawFile = new XMLHttpRequest();
rawFile.open("GET", file, false);
rawFile.onreadystatechange = function ()
{
...
Eclipse JPA Project Change Event Handler (waiting)
...his hasn't been fully resolved in Kepler (20130614-0229) yet and because I don't need JPT/DALI in my eclipse I ended up manually removing the org.eclipse.jpt features and plugins.
What I did was:
1.) exit eclipse
2.) go to my eclipse install directory
cd eclipse
and execute these steps:
*nix...
Determine the data types of a data frame's columns
I'm using R and have loaded data into a dataframe using read.csv() . How do I determine the data type of each column in the data frame?
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How to install MySQLdb (Python data access library to MySQL) on Mac OS X?
...alled it (instructions on this fiddly task are available on SO here), then download and install the 32 bit version (package here)
There are numerous step-by-steps on how to build and install the MySQLdb libraries. They often have subtle differences. This seemed the most popular to me, and provide...
Is there a way to remove the separator line from a UITableView?
...remove the separator line in a UITableView when in the plain mode. This is done automatically in grouped, but this also changes the dimensions of the table in a way that is hard to measure. I have set the seperator line color to colorClear. But this does not completely solve the problem.
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Round a double to 2 decimal places [duplicate]
...
Here's an utility that rounds (instead of truncating) a double to specified number of decimal places.
For example:
round(200.3456, 2); // returns 200.35
Original version; watch out with this
public static double round(double value, int places) {
if (places < 0) throw n...
I can not find my.cnf on my windows computer [duplicate]
My computer is Windows XP.
6 Answers
6
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Create empty file using python [duplicate]
...e it immediately after the open() statement finished - but it's cleaner to do it explicitely and relying on CPython-specific behaviour is not good either.
In case you want touch's behaviour (i.e. update the mtime in case the file exists):
import os
def touch(path):
with open(path, 'a'):
...