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Calculate the number of business days between two dates?
... intervals of several months.
See my code, with comments, below.
/// <summary>
/// Calculates number of business days, taking into account:
/// - weekends (Saturdays and Sundays)
/// - bank holidays in the middle of the week
/// </summary>
/// <param name="f...
Weighted random numbers
...ght
Pseudo-code illustrating this:
int sum_of_weight = 0;
for(int i=0; i<num_choices; i++) {
sum_of_weight += choice_weight[i];
}
int rnd = random(sum_of_weight);
for(int i=0; i<num_choices; i++) {
if(rnd < choice_weight[i])
return i;
rnd -= choice_weight[i];
}
assert(!"should ...
Does C# have extension properties?
...ends Person : IEmployee
{
private static readonly ConditionalWeakTable<Person, Employee> _employees =
new ConditionalWeakTable<Person, Employee>();
public decimal Salary
{
get
{
// `this` is the instance of Person
return _em...
Open a buffer as a vertical split in VIM
...
Try:
:vert sb N
which will open a left vertical split (by default, unless you have modified some options).
To open a split to the right, on the other hand:
:vert belowright sb N
share
|
...
Append an object to a list in R in amortized constant time, O(1)?
...
If it's a list of string, just use the c() function :
R> LL <- list(a="tom", b="dick")
R> c(LL, c="harry")
$a
[1] "tom"
$b
[1] "dick"
$c
[1] "harry"
R> class(LL)
[1] "list"
R>
That works on vectors too, so do I get the bonus points?
Edit (2015-Feb-01): This post is c...
How do I put hint in a asp:textbox
... attribute. Use it like any other attribute inside your ASP.net control:
<asp:textbox id="txtWithHint" placeholder="hint" runat="server"/>
Don't bother about your IDE (i.e. Visual Studio) maybe not knowing the attribute. Attributes which are not registered with ASP.net are passed through an...
Lambda function in list comprehensions
...e squaring function, see:
>>> [lambda x: x*x for _ in range(3)]
[<function <lambda> at 0x00000000023AD438>, <function <lambda> at 0x00000000023AD4A8>, <function <lambda> at 0x00000000023AD3C8>]
Note the memory addresses of the lambdas - they are all diff...
How to remove a single, specific object from a ConcurrentBag?
With the new ConcurrentBag<T> in .NET 4, how do you remove a certain, specific object from it when only TryTake() and TryPeek() are available?
...
Getting DOM elements by classname
...
because class can have more than one class for example: <a class="my-link link-button nav-item">.
– prodigitalson
Jun 17 '11 at 1:43
2
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What should a Multipart HTTP request with multiple files look like? [duplicate]
I'm working on an iPhone app that makes a multipart HTTP request with multiple image files.
2 Answers
...