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Type Checking: typeof, GetType, or is?
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CSS Selector “(A or B) and C”?
... just that:
:matches(.a .b) .c {
/* stuff goes here */
}
You can find more info on it here and here. Currently, most browsers support its initial version :any(), which works the same way, but will be replaced by :matches(). We just have to wait a little more before using this everywhere (I sure...
How to delete selected text in the vi editor
... use h, j, k and l to move left, down, up, right respectively, that's much more efficient than using the arrows) and type d to delete the selection.
Also, how can I select the lines using my keyboard as I can in Windows where I press Shift and move the arrows to select the text? How can I do th...
Can I use the range operator with if statement in Swift?
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Merging dictionaries in C#
What's the best way to merge 2 or more dictionaries ( Dictionary<T1,T2> ) in C#?
(3.0 features like LINQ are fine).
2...
How can I view a git log of just one user's commits?
...its commited (but not necessarily authored) by Adam, replace %an with %cn. More details about this are in my blog post here: http://dymitruk.com/blog/2012/07/18/filtering-by-author-name/
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What is the most efficient way to concatenate N arrays?
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If you're concatenating more than two arrays, concat() is the way to go for convenience and likely performance.
var a = [1, 2], b = ["x", "y"], c = [true, false];
var d = a.concat(b, c);
console.log(d); // [1, 2, "x", "y", true, false];
For conca...
Difference between object and class in Scala
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I think ziggystar's answer is more precise, the class is an anonymous class, unless a corresponding class named Commerce is explicitly defined (then Commerce object will be a companion object to the Commerce class)
– Hendy Irawan
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Use of var keyword in C#
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I still think var can make code more readable in some cases. If I have a Customer class with an Orders property, and I want to assign that to a variable, I will just do this:
var orders = cust.Orders;
I don't care if Customer.Orders is IEnumerable<Ord...
How do I use DateTime.TryParse with a Nullable?
...e.TryParse("some date text", out d2);
if (success) d=d2;
(There might be more elegant solutions, but why don't you simply do something as above?)
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