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Traits vs. interfaces
... and I find myself getting hung up on traits. I understand the concept of horizontal code reuse and not wanting to necessarily inherit from an abstract class. What I don't understand is: What is the crucial difference between using traits versus interfaces?
...
Which letter of the English alphabet takes up most pixels?
...you'll have to do a similar empirical experiment to figure out the answer for your environment. But the fact is, most fonts follow the same conventions, and capital W will be the widest.
Gist with these character widths in a ratio form (W = 100) captured here using this particular example font:
h...
How to format a float in javascript?
...a float to a string, how can I get just 2 digits after the decimal point? For example, 0.34 instead of 0.3445434.
14 Answer...
Why does C# forbid generic attribute types?
...y justification.
The annotated ECMA C# 2 spec doesn't give any helpful information either, although it does provide an example of what's not allowed.
My copy of the annotated C# 3 spec should arrive tomorrow... I'll see if that gives any more information. Anyway, it's definitely a language decisio...
Lisp in the real world
...found it to be a very beautiful language that I am interested in learning more about. However, it appears that Lisp is never used in serious projects, and I haven't seen it listed as a desired skill on any job posting. I am interested in hearing from anyone who has used Lisp or seen it used in the...
Why does sudo change the PATH?
...This is an annoying function a feature of sudo on many distributions.
To work around this "problem" on ubuntu I do
the following in my ~/.bashrc
alias sudo='sudo env PATH=$PATH'
Note the above will work for commands that don't reset the $PATH themselves.
However `su' resets it's $PATH so you mus...
Creating range in JavaScript - strange syntax
...call does
They're rather advanced topics in javascript, so this will be more-than-rather long. We'll start from the top. Buckle up!
1. Why not just Array(5).map?
What's an array, really? A regular object, containing integer keys, which map to values. It has other special features, for instance t...
Something like 'contains any' for Java set?
...
Wouldn't Collections.disjoint(A, B) work? From the documentation:
Returns true if the two specified collections have no elements in common.
Thus, the method returns false if the collections contains any common elements.
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How to hide only the Close (x) button?
...it, but you can disable it by overriding the CreateParams property of the form.
private const int CP_NOCLOSE_BUTTON = 0x200;
protected override CreateParams CreateParams
{
get
{
CreateParams myCp = base.CreateParams;
myCp.ClassStyle = myCp.ClassStyle | CP_NOCLOSE_BUTTON ;
...
Deserialize JSON to ArrayList using Jackson
... Your answer seems related to their info on how to use the built-in support for TypeReference - I just don't get how to do it... Please see my edit above for their instructions on how to use generics.
– tacos_tacos_tacos
Mar 22 '12 at 20:04
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