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Is there a way to iterate over a range of integers?
...on version of the for loop (i.e. you can do a lot more with it, the syntax from the OP is only good for that more restricted case of a number range, so in any language you're going to want this extended version) and it sufficiently accomplishes the same task, and isn't remarkably different anyway, s...
How to reverse a string in Go?
...orks on string by enumerating unicode characters
string can be constructed from int slices where each element is a unicode character.
So here it goes:
func reverse(s string) string {
o := make([]int, utf8.RuneCountInString(s));
i := len(o);
for _, c := range s {
i--;
o...
Why can't I center with margin: 0 auto?
...
An inline-block covers the whole line (from left to right), so a margin left and/or right won't work here. What you need is a block, a block has borders on the left and the right so can be influenced by margins.
This is how it works for me:
#content {
display: b...
What is a loop invariant?
...
Thanks very much for this answer! The biggest take from it is the purpose of having this loop invariant is to help prove the correctness of the algorithm. The other answers only focus on what is a loop invariant!
– Neekey
Dec 5 '18 at 12...
ASP.NET MVC3 - textarea with @Html.EditorFor
...is referring to is creating classes that represent your view data SEPARATE from classes that are used in your DbContext. Don't pass your DbContext models into views. Create a view model class, then shift the info you care about from the db model into the view model, and vice versa when accepting inp...
Chain-calling parent initialisers in python [duplicate]
Consider this - a base class A, class B inheriting from A, class C inheriting from B. What is a generic way to call a parent class initialiser in an initialiser? If this still sounds too vague, here's some code.
...
What is the significance of initializing direction arrays below with given values when developing ch
...bottom right is 4,4 and shown what move each index of the arrays will make from the central point, X, at 2,2.)
.....
.536.
.1X0.
.724.
.....
The way it is set up, if you do ^1 (^ being bitwise XOR) on the index you get the opposite direction - 0 and 1 are opposites, 2 and 3 are opposites and so o...
Why .NET String is immutable? [duplicate]
...estion). With mutable objects that can't be done.
No side-effects can come from passing an immutable type as a method to a parameter unless it is out or ref (since that changes the reference, not the object). A programmer therefore knows that if string x = "abc" at the start of a method, and that do...
Why “decimal” is not a valid attribute parameter type?
... types and arrays of
primitives (may have missed a minor
one).
Taken from this answer by JaredPar.
Decimals while a basic type are not a
primitive type and hence cannot be
represented in metadata which prevents
it from being an attribute parameter.
...
Dictionary returning a default value if the key does not exist [duplicate]
...old post and I do favor extension methods, but here's a simple class I use from time to time to handle dictionaries when I need default values.
I wish this were just part of the base Dictionary class.
public class DictionaryWithDefault<TKey, TValue> : Dictionary<TKey, TValue>
{
TVa...