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How to sort strings in JavaScript
...
Use String.prototype.localeCompare a per your example:
list.sort(function (a, b) {
return ('' + a.attr).localeCompare(b.attr);
})
We force a.attr to be a string to avoid exceptions. localeCompare has been supported since Internet Explorer 6 and Firefox 1. You may a...
Iterating over dictionaries using 'for' loops
... To loop over both key and value you can use the following:
For Python 3.x:
for key, value in d.items():
For Python 2.x:
for key, value in d.iteritems():
To test for yourself, change the word key to poop.
In Python 3.x, iteritems() was replaced with simply items(), which returns a set-like ...
Move capture in lambda
...;
struct rref_impl
{
rref_impl() = delete;
rref_impl( T && x ) : x{std::move(x)} {}
rref_impl( rref_impl & other )
: x{std::move(other.x)}, isCopied{true}
{
assert( other.isCopied == false );
}
rref_impl( rref_impl && other )
: x{st...
C++ templates Turing-complete?
...
Example
#include <iostream>
template <int N> struct Factorial
{
enum { val = Factorial<N-1>::val * N };
};
template<>
struct Factorial<0>
{
enum { val = 1 };
};
int main()
{
// Not...
How to set Python's default version to 3.x on OS X?
...
Changing the default python executable's version system-wide could break some applications that depend on python2.
However, you can alias the commands in most shells, Since the default shells in macOS (bash in 10.14 and below; zsh in 10.15) share a simi...
Reordering of commits
...story should look like this:
c - [a+d+e+g] - [b+f] (branchA)
/
--o-x-x-x-x-x-x-x-x-x-x (master)
Now, let's grab the newly-squashed commit b+f for branchB.
git checkout branchB
git cherry-pick branchA # cherry-pick one commit, the tip of branchA
And the same for a+d+e+g for master:
git...
Print a file, skipping the first X lines, in Bash [duplicate]
... long file which I want to print, skipping the first 1,000,000 lines, for example.
13 Answers
...
Move assignment operator and `if (this != &rhs)`
...ptimal solution.
The use of Copy and Swap is for dumb_array is a classic example of putting the most expensive operation with the fullest features at the bottom layer. It is perfect for clients who want the fullest feature and are willing to pay the performance penalty. They get exactly what they...
HTML 5 Favicon - Support?
...there are several things to consider.
The first (of course) is Internet Explorer. IE does not support PNG favicons until version 11. So our first line is a conditional comment for favicons in IE 9 and below:
<!--[if IE]><link rel="shortcut icon" href="path/to/favicon.ico"><![endif...
Paste multiple columns together
... to paste together
cols <- c( 'b' , 'c' , 'd' )
# create a new column `x` with the three columns collapsed together
data$x <- apply( data[ , cols ] , 1 , paste , collapse = "-" )
# remove the unnecessary columns
data <- data[ , !( names( data ) %in% cols ) ]
...