大约有 30,000 项符合查询结果（耗时：0.0258秒） [XML]
One-liner to check whether an iterator yields at least one element?
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This seems to work for me, with a re.finditer. You can test that any stops at first success easily: run any((x > 100 for x in xrange(10000000))) and then run any((x > 10000000 for x in xrange(100000000))) -- the second should take much longer.
– chbrow...
Delete files older than 15 days using PowerShell
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Thanks for this, esp including the 'WhatIf' switch for testing.
– JoelAZ
Jul 30 at 18:33
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How to log a method's execution time exactly in milliseconds?
...ed measurements apply; you're probably best off invoking the routine under test many times, and averaging/taking a minimum/some other form of processing.
Additionally, please note that you may find it more useful to profile your application running using a tool like Shark. This won't give you exac...
Count how many files in directory PHP
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Since I needed this too, I was curious as to which alternative was the fastest.
I found that -- if all you want is a file count -- Baba's solution is a lot faster than the others. I was quite surprised.
Try it out for yourself:
<?php
define('MYDIR', '...');
foreach (array(1, 2, 3) as $i)
{
...
How do you print in a Go test using the “testing” package?
I'm running a test in Go with a statement to print something (i.e. for debugging of tests) but it's not printing anything.
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Detect Chrome extension first run / update
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first_run = true;
localStorage['ran_before'] = '1';
}
if (first_run) alert('This is the first run!');
EDIT: To check whether the extension has just been updated, store the version instead of a simple flag on first run, then when the current extension version (get it by XmlHttpRequesting the ...
Private properties in JavaScript ES6 classes
...t.
class Something {
#property;
constructor(){
this.#property = "test";
}
#privateMethod() {
return 'hello world';
}
getPrivateMessage() {
return this.#privateMethod();
}
}
const instance = new Something();
console.log(instance.property); //=> undefined
console.lo...
lua和c/c++互相调用实例分析 - C/C++ - 清泛网 - 专注C/C++及内核技术
...sum函数实现加法
function mysum(a,b)
return csum(a,b) ;
end
test_lua.c
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
//lua头文件
#include <lua.h>
#include <lualib.h>
#include <lauxlib.h>
#define err_exit(num,fmt,args) \
do{printf("...
Is there a math nCr function in python? [duplicate]
... @Netzsooc: op.mul is approximately 25% faster in my quick timing test I did on my computer. YMMV.
– Jake Griffin
May 8 '17 at 6:26
3
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Comparing two branches in Git? [duplicate]
...o branches. If you'd prefer to find the diff from their common ancestor to test, you can use three dots instead of two:
git diff branch_1...branch_2
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