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Why is “using namespace std;” considered bad practice?
I've been told by others that writing using namespace std; in code is wrong, and that I should use std::cout and std::cin directly instead.
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Seeking clarification on apparent contradictions regarding weakly typed languages
... the 15th of October, 2012. Thanks for the great question!
What does it really mean for a language to be "weakly typed"?
It means "this language uses a type system that I find distasteful". A "strongly typed" language by contrast is a language with a type system that I find pleasant.
The t...
In JavaScript can I make a “click” event fire programmatically for a file input element?
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You cannot do that in all browsers, supposedly IE does allow it, but Mozilla and Opera do not.
When you compose a message in GMail, the 'attach files' feature is implemented one way for IE and any browser that supports this, and then implemented another way for Firefox and those brow...
Understanding the Rails Authenticity Token
I am running into some issues regarding the Authenticity Token in Rails, as I have many times now.
10 Answers
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Safe (bounds-checked) array lookup in Swift, through optional bindings?
...er, I've happened to stumble on a nicer way of implementing this functionality:
Swift 3.2 and newer
extension Collection {
/// Returns the element at the specified index if it is within bounds, otherwise nil.
subscript (safe index: Index) -> Element? {
return indices.contains(i...
eclipse stuck when building workspace
I am using eclipse 3.4.1 Java EE under Vista. It seems to like getting stuck when building my workspace. Canceling the build doesn't seem to do anything as well.
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How are strings passed in .NET?
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A reference is passed; however, it's not technically passed by reference. This is a subtle, but very important distinction. Consider the following code:
void DoSomething(string strLocal)
{
strLocal = "local";
}
void Main()
{
string strMain = "main";...
Calculate a Running Total in SQL Server
...em is that the SQL Server implementation of the Over clause is somewhat limited.
Oracle (and ANSI-SQL) allow you to do things like:
SELECT somedate, somevalue,
SUM(somevalue) OVER(ORDER BY somedate
ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
AS RunningTotal
FROM Table...
What is the purpose of the HTML “no-js” class?
...gines, in the HTML5 Boilerplate , in various frameworks and in plain php sites there is the no-js class added onto the <HTML> tag.
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Why does PHP 5.2+ disallow abstract static class methods?
...w a load of strict standards warnings from a project that was originally written without strict warnings:
8 Answers
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