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Using @include vs @extend in Sass?
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In my opinion extends are pure evil and should be avoided. Here is why:
given the scss:
%mystyle {color: blue;}
.mystyle-class {@extend %mystyle}
//basically anything not understood by target browser (such as :last-child in IE8):
::-webkit-input-placehol...
In .NET, which loop runs faster, 'for' or 'foreach'?
...
Reading through the blog post it looks like the tests were run in Debug and not Release so that might have a factor. Additionally the difference is specifically for just the loop overhead. It doesn't affect the time to execute the body of the loop at all which is most ca...
Why does an overridden function in the derived class hide other overloads of the base class?
...then it was decided that in the end name hiding would prove to be a lesser evil.
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String concatenation in Ruby
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The + operator is the normal concatenation choice, and is probably the fastest way to concatenate strings.
The difference between + and << is that << changes the object on its left hand side, and + doesn't.
irb(main):001:0> s = 'a'
=> "a"
irb(main):002:0> s + 'b'
=> "ab"
i...
PHP and MySQL - how to avoid password in source code? [duplicate]
...could have a different configuration file for production, development, and testing platforms.
An environment variable is the most common way to differentiate between these environments, something like the below code:
// Check if it's been set by the web server
if (!empty($_ENV['ENVIRONMENT'])) {
...
Query an XDocument for elements by name at any depth
...tely fine. Here's an example:
using System;
using System.Xml.Linq;
class Test
{
static void Main()
{
string xml = @"
<root>
<child id='1'/>
<child id='2'>
<grandchild id='3' />
<grandchild id='4' />
</child>
</root>";
...
Is there a range class in C++11 for use with range based for loops?
..._(begin), end_(end) {}
private:
iterator begin_;
iterator end_;
};
Test code:
int main() {
int m, n;
std::istringstream in("10 20");
if ( in >> m >> n ) //using in, because std::cin cannot be used at coliru.
{
if ( m > n ) std::swap(m,n);
...
string.IsNullOrEmpty(string) vs. string.IsNullOrWhiteSpace(string)
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The differences in practice :
string testString = "";
Console.WriteLine(string.Format("IsNullOrEmpty : {0}", string.IsNullOrEmpty(testString)));
Console.WriteLine(string.Format("IsNullOrWhiteSpace : {0}", string.IsNullOrWhiteSpace(testString)));
Console.ReadKey(...
How to pass arguments and redirect stdin from a file to program run in gdb?
... how to apply this: Just type debug in front:
Before:
p=($'\n' $'I\'am\'evil' " yay ")
"b u g" "${p[@]}" < <(in) 1> >(out) 2> >(two) 3> >(three)
After:
p=($'\n' $'I\'am\'evil' " yay ")
debug "b u g" "${p[@]}" < <(in) 1> >(out) 2> >(two) 3> >(...
Meaning of $? (dollar question mark) in shell scripts
... @thirdender The proper solution to that is to encapsulate the complex test in a shell function.
– tripleee
Aug 4 '19 at 9:32
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