大约有 2,700 项符合查询结果（耗时：0.0157秒） [XML]
What is the best way to detect a mobile device?
...f(/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|ipad|iris|kindle|Android|Silk|lge |maemo|midp|mmp|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|wind...
How do I get the first element from an IEnumerable in .net?
...
Just in case you're using .NET 2.0 and don't have access to LINQ:
static T First<T>(IEnumerable<T> items)
{
using(IEnumerator<T> iter = items.GetEnumerator())
{
iter.MoveNext();
return iter.Current;
}
...
Using Sinatra for larger projects via multiple files
...nd
end
helpers/nicebytes.rb
# encoding: utf-8
module NiceBytes
K = 2.0**10
M = 2.0**20
G = 2.0**30
T = 2.0**40
def nice_bytes( bytes, max_digits=3 )
value, suffix, precision = case bytes
when 0...K
[ bytes, 'B', 0 ]
else
value, suffix = case bytes
...
Should everything really be a bundle in Symfony 2.x?
...plate guesser service, but since the approach is different between Symfony 2.0 and 2.1, I'm providing versions for both of them.
Overriding the Symfony 2.1+ template guesser
I've created a bundle that does that for you.
Overriding the Symfony 2.0 template listener
First, define the class:
<?php
n...
Where can I learn how to write C code to speed up slow R functions? [closed]
...tic function:
Rcpp::NumericVector x = Rcpp::NumericVector::create( 1.0, 2.0, 3.0 ) ;
Rcpp::NumericVector x = Rcpp::NumericVector::create(
_["a"] = 1.0,
_["b"] = 2.0,
_["c"] = 3
) ;
Of a given size:
Rcpp::NumericVector x( 10 ) ; // filled with 0.0
Rcpp::NumericVector x(...
What is the most pythonic way to check if an object is a number?
...decimal import Decimal
... from fractions import Fraction
... for n in [2, 2.0, Decimal('2.0'), complex(2, 0), Fraction(2, 1), '2']:
... print(f'{n!r:>14} {isinstance(n, Number)}')
2 True
2.0 True
Decimal('2.0') True
(2+0j) True
Fraction(2, 1) True
...
Changing UIImage color
...deAlwaysTemplate];
[theImageView setTintColor:[UIColor redColor]];
Swift 2.0:
theImageView.image = theImageView.image?.imageWithRenderingMode(.AlwaysTemplate)
theImageView.tintColor = UIColor.magentaColor()
Swift 4.0:
theImageView.image = theImageView.image?.withRenderingMode(.alwaysTemplate)...
How does Dijkstra's Algorithm and A-Star compare?
I was looking at what the guys in the Mario AI Competition have been doing and some of them have built some pretty neat Mario bots utilizing the A* (A-Star) Pathing Algorithm.
...
Reusable library to get human readable version of file size?
...e examples using the data from the OP: humanize.naturalsize(2048) # => '2.0 kB' , humanize.naturalsize(2048, binary=True) # => '2.0 KiB' humanize.naturalsize(2048, gnu=True) # => '2.0K'
– RubenLaguna
Jan 27 '16 at 10:10
...
How do you sort a dictionary by value?
...pair1.Value.CompareTo(pair2.Value);
}
);
Since you're targeting .NET 2.0 or above, you can simplify this into lambda syntax -- it's equivalent, but shorter. If you're targeting .NET 2.0 you can only use this syntax if you're using the compiler from Visual Studio 2008 (or above).
var myList ...