大约有 30,000 项符合查询结果（耗时：0.0286秒） [XML]
Sort a list by multiple attributes?
...So first I defined a helper method
def attr_sort(self, attrs=['someAttributeString']:
'''helper to sort by the attributes named by strings of attrs in order'''
return lambda k: [ getattr(k, attr) for attr in attrs ]
then to use it
# would defined elsewhere but showing here for consiseness
se...
Convert decimal to binary in python [duplicate]
...
@zero_cool if test_var = "Hello world" then test_var[2:] = "llo world"
– Walter
Apr 10 '18 at 7:30
2
...
Replace multiple characters in one replace call
...
Use the OR operator (|):
var str = '#this #is__ __#a test###__';
str.replace(/#|_/g,''); // result: "this is a test"
You could also use a character class:
str.replace(/[#_]/g,'');
Fiddle
If you want to replace the hash with one thing and the underscore with another, then ...
Setup RSpec to test a gem (not Rails)
... is pretty easy with the added generator of rspec-rails to setup RSpec for testing a Rails application. But how about adding RSpec for testing a gem in development?
I am not using jeweler or such tools. I just used Bundler ( bundle gem my_gem ) to setup the structure for the new gem and edit the *.g...
Is errno thread-safe?
...its
value in any other thread.
We can double-check:
$ cat > test.c
#include <errno.h>
f() { g(errno); }
$ cc -E test.c | grep ^f
f() { g((*__errno_location ())); }
$
share
|
i...
How do I efficiently iterate over each entry in a Java Map?
... found 10 main ways to do this (see below). Also, I wrote some performance tests (see results below). For example, if we want to find the sum of all of the keys and values of a map, we can write:
Using iterator and Map.Entry
long i = 0;
Iterator<Map.Entry<Integer, Integer>> it = map.e...
ie8 var w= window.open() - “Message: Invalid argument.”
...
I also meet this issue while I used the following code:
window.open('test.html','Window title','width=1200,height=800,scrollbars=yes');
but when I delete the blank space of the "Window title" the below code is working:
window.open('test.html','Windowtitle','width=1200,height=800,scrollbars=...
Most efficient way to create a zero filled JavaScript array?
...) is painfully slow. (arr = []).length = len; arr.fill(0); is about the fastest solution ive seen anywhere... or at least tied
– Pimp Trizkit
Sep 22 '15 at 16:08
...
Mixing a PHP variable with a string literal
Say I have a variable $test and it's defined as: $test = 'cheese'
4 Answers
4
...
How do I get the directory that a program is running from?
...ve path. So for example I have this directory structure:
main
----> test
----> src
----> bin
and I want to compile my source code to bin and write a log to test I can just add this line to my code.
std::string pathToWrite = base + "/../test/test.log";
I have tried this approach...