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Reasons for using the set.seed function
...
The char2seed function in the TeachingDemos package allows you to set the seed (or choose a seed to pass into set.seed) based on a character string. For example you could have students use their name as the seed then each studen...
Throwing exceptions from constructors
...attached has an outdated hyperlink. To fix it wants to change exactly one character, replacing "#faq-17.2" with "#faq-17.8" in the URL. However, Stackoverflow's software requires that an edit submitted by a low-reputation user like me change at least six characters. Pretty obviously, the broken l...
What are copy elision and return value optimization?
...;iostream>
using namespace std;
class ABC
{
public:
const char *a;
ABC()
{ cout<<"Constructor"<<endl; }
ABC(const char *ptr)
{ cout<<"Constructor"<<endl; }
ABC(ABC &obj)
{ cout<<"copy constructor"<<endl;...
VIM Ctrl-V Conflict with Windows Paste
...nce CTRLV is used to paste, you can't use it to start a blockwise Visual
selection. You can use CTRLQ instead. You can also use CTRLQ in Insert
mode and Command-line mode to get the old meaning of CTRLV. But CTRLQ
doesn't work for terminals when it's used for control flow.
...
Android selector & text color
...or/button_dark_text.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true"
android:color="#000000" /> <!-- pressed -->
<item android:state_focused="true"
...
How to add directory to classpath in an application run profile in IntelliJ IDEA?
...e F12)
click on the dependencies tab
Click the "+" button on the right and select "Jars or directories..."
Find your path and click OK
In the dialog with "Choose Categories of Selected File", choose Classes (even if it's properties), press OK and OK again
You can now run your application and it will...
Avoiding if statement inside a for loop?
... f(index++, e);
}
int main() {
using namespace std;
set<char> s{'b', 'a', 'c'};
// indices starting at 1 instead of 0
for_each_indexed(s, [](size_t i, char e) { cout<<i<<'\t'<<e<<'\n'; }, 1u);
cout << "-----" << endl;
vecto...
Case insensitive XPath contains() possible?
...or search strings where the alphabet is known beforehand. Add any accented characters you expect to see.
If you can, mark the text that interests you with some other means, like enclosing it in a <span> that has a certain class while building the HTML. Such things are much easier to locate ...
jQuery Ajax POST example with PHP
...}
// setup some local variables
var $form = $(this);
// Let's select and cache all the fields
var $inputs = $form.find("input, select, button, textarea");
// Serialize the data in the form
var serializedData = $form.serialize();
// Let's disable the inputs for the dura...
Can the jQuery UI Datepicker be made to disable Saturdays and Sundays (and holidays)?
... array with [0] equal to true/false indicating whether or not this date is selectable and 1 equal to a CSS class name(s) or '' for the default presentation. It is called for each day in the datepicker before is it displayed.
Display some national holidays in the datepicker.
$(".selector").datepick...