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How to install both Python 2.x and Python 3.x in Windows
... the Python34 folder in C:\ and rename a copy of python.exe to python3.exe
Test: open up commmand prompt and type python2 ....BOOM! Python 2.7.6. exit out.
Test: open up commmand prompt and type python3 ....BOOM! Python 3.4.3. exit out.
Note: (so as not to break pip commands in step 4 and 5, keep ...
What is the reason not to use select *?
...
Another time to use SELECT * would be when you're doing test queries using the db client.
– cdmckay
Feb 18 '09 at 20:51
...
How can I disable the Maven Javadoc plugin from the command line?
... arguments you can separate them with a space like this -Darguments="-DskipTests -Dmaven.javadoc.skip=true"
– Graham
Apr 14 '16 at 20:30
4
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Interface defining a constructor signature?
...>
{
// This will not compile
public Foo(int x)
{
}
#region ITest<Test> Members
public void SomeMethod()
{
throw new NotImplementedException();
}
#endregion
}
On the other hand, if you want to test if a type has a paramerterless constructor, you can do that using ...
What is the !! (not not) operator in JavaScript?
...! is not an operator, it's just the ! operator twice.
Real World Example "Test IE version":
const isIE8 = !! navigator.userAgent.match(/MSIE 8.0/);
console.log(isIE8); // returns true or false
If you ⇒
console.log(navigator.userAgent.match(/MSIE 8.0/));
// returns either an Array or nu...
C#: Looping through lines of multiline string
...or whatever) is so common that it shouldn't require the calling code to be testing for null etc :) Having said that, if you do want to do a manual loop, this is the form that I typically prefer over Fredrik's:
using (StringReader reader = new StringReader(input))
{
string line;
while ((line...
How to improve performance of ngRepeat over a huge dataset (angular.js)?
...
The hottest - and arguably most scalable - approach to overcoming these challenges with large datasets is embodied by the approach of Ionic's collectionRepeat directive and of other implementations like it. A fancy term for this is ...
Microsoft Excel mangles Diacritics in .csv files?
I am programmatically exporting data (using PHP 5.2) into a .csv test file.
Example data: Numéro 1 (note the accented e).
The data is utf-8 (no prepended BOM).
...
How to get row from R data.frame
... )
#The vector your result should match
y<-c(A=5, B=4.25, C=4.5)
#Test that the items in the row match the vector you wanted
x[1,]==y
This page (from this useful site) has good information on indexing like this.
s...
How do I create a directory from within Emacs?
...:
C-x d *.py RET ; shows python source files in the CWD in `Dired` mode
+ test RET ; create `test` directory in the CWD
CWD stands for Current Working Directory.
or just create a new file with non-existing parent directories using C-x C-f and type:
M-x make-directory RET RET
Emacs asks to...