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How to implement a rule engine?
...ode (using Expression trees) and does not need any complicated switch statements:
(Edit : full working example with generic method)
public Func<User, bool> CompileRule(Rule r)
{
var paramUser = Expression.Parameter(typeof(User));
Expression expr = BuildExpr(r, paramUser);
// build ...
How can I pass a parameter to a Java Thread?
Can anyone suggest to me how I can pass a parameter to a thread?
18 Answers
18
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How do I check that a number is float or integer?
...ction isInt(n) {
return n % 1 === 0;
}
If you don't know that the argument is a number you need two tests:
function isInt(n){
return Number(n) === n && n % 1 === 0;
}
function isFloat(n){
return Number(n) === n && n % 1 !== 0;
}
Update 2019
5 years after this answer ...
Window.open and pass parameters by post method
With window.open method I open new site with parameters, which I have to pass by post method.I've found solution, but unfortunately it doesn't work. This is my code:
...
How can I unstage my files again after making a local commit?
... What is described in this answer is actually what git commit --amend does; but with a much more complicated workflow. This does not answer the question OP asked, in spite of giving a good direction (git reset).
– 7heo.tk
May 12 '15 at 11:26
...
Can I record/play macros in Visual Studio 2012/2013/2015/2017/2019?
...sual Studio 2012-2019 extension (I am the author). It basically does the same thing as the Notepad++ macros (text editing, no UI automation).
The code is open source (GitHub), so feel free to contribute improvements :-)
sha...
What are the most widely used C++ vector/matrix math/linear algebra libraries, and their cost and be
It seems that many projects slowly come upon a need to do matrix math, and fall into the trap of first building some vector classes and slowly adding in functionality until they get caught building a half-assed custom linear algebra library, and depending on it.
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An algorithm for inflating/deflating (offsetting, buffering) polygons
How would I "inflate" a polygon? That is, I want to do something similar to this:
12 Answers
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Making Python loggers output all messages to stdout in addition to log file
...but in addition always be copied to stdout . This is to avoid duplicating messages like:
10 Answers
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ASP.NET MVC - TempData - Good or bad practice
I'm using the AcceptVerbs method detailed in Scott Gu's Preview 5 blog post for dealing with form entries in ASP.NET MVC:
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