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Different ways of adding to Dictionary
...is the This indexer:
public TValue this[TKey key]
{
get
{
int index = this.FindEntry(key);
if (index >= 0)
{
return this.entries[index].value;
}
ThrowHelper.ThrowKeyNotFoundException();
return default(TValue);
}
set
...
How to concatenate two numbers in javascript?
...
You can also use toString function to convert it to string and concatenate.
var a = 5;
var b = 6;
var value = a.toString() + b.toString();
ModelState.IsValid == false, why?
...lowing snippet to find out whats wrong:
(Often if the binder is trying to convert strings to complex types etc)
if (!ModelState.IsValid)
{
var errors = ModelState.SelectMany(x => x.Value.Errors.Select(z => z.Exception));
// Breakpoint, Log or examine the list with Exceptions.
...
How to find the created date of a repository project on GitHub?
...
@legends or someone else, suggestions for converting to human readable timestamps?
– jasonleonhard
Sep 12 '19 at 21:29
| ...
How much is too much with C++11 auto keyword?
... composite key type in boost::multi_index, even though you know that it is int. You can't just write int because it could be changed in the future. I would write auto in this case.
So if the auto keyword improves readability in a particular case then use it. You can write auto when it is obvious to...
C++0x has no semaphores? How to synchronize threads?
...es with. Condition variables supposedly are more manageable. I see their point but feel a bit patronized. I assume that the same logic applies to C++11 -- programmers are expected to write their programs in a way that "naturally" uses condvars or other approved synchronization techniques. Supply a s...
UITableView set to static cells. Is it possible to hide some of the cells programmatically?
...cells-in-static-table-view/
Design your static table view as normal in interface builder –
complete with all potentially hidden cells. But there is one thing you
must do for every potential cell that you want to hide – check the
“Clip subviews” property of the cell, otherwise the c...
Scala: Abstract types vs generics
...
You have a good point of view on this issue here:
The Purpose of Scala's Type System
A Conversation with Martin Odersky, Part III
by Bill Venners and Frank Sommers (May 18, 2009)
Update (October2009): what follows below has actually been ...
Best introduction to C++ template metaprogramming? [closed]
...Mapping Integral Constants to Types", 2.6 "Type Selection", 2.7 "Detecting Convertibility and Inheritance at Compile Time", 2.9 "NullType and EmptyType" and 2.10 "Type Traits".
The best intermediate/advanced resource I've found is C++ Template Metaprogramming by David Abrahams and Aleksey Gurtovoy,...
What is makeinfo, and how do I get it?
...nfo File" of the Texinfo manual states that
makeinfo is a program that converts a Texinfo file into an Info file,
HTML file, or plain text.
The Texinfo home page explains that
Texinfo itself "is the official documentation format of the GNU project" and that it "uses a single source file to p...