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Nodejs send file in response
...hole file into memory before sending the file). The server listens on port 2000.
[Update] As mentioned by @Aftershock in the comments, util.pump is gone and was replaced with a method on the Stream prototype called pipe; the code below reflects this.
var http = require('http'),
fileSystem = re...
Sass calculate percent minus px
...the width of the container, you could do like this:
#container
width: #{200}px
#element
width: #{(0.25 * 200) - 5}px
I'm aware that in many cases #container could have a relative width. Then this wouldn't work.
sh...
Can two different strings generate the same MD5 hash code?
...
True, I updated my post. The 2004 random collision attack is very fast indeed. The 2007 MD5 prefix collision attack can take days -- but is generally much more useful to an attacker
– intgr
Nov 18 '09 at 15:53
...
What is the runtime performance cost of a Docker container?
...n Mod Memcached
Connection rate: 11419.3 conn/s
Connection time [ms]: avg 200.5 min 0.6 max 263.2 stddev 73.85
Connect time [ms]: avg 26.2 min 0.0 max 53.5 stddev 14.59
Request rate: 114192.6 req/s (0.0 ms/req)
Request size [B]: avg 129.0 min 129.0 max 129.0 stddev 0.00
Response rate: 114192.6 rsp/...
What's the difference between passing by reference vs. passing by value?
... and called function). Jon Skeet also has a nice explanation of this here.
C++ supports pass by value and pass by reference (reference parameter type used at called function). You will find an explanation of this below.
Codes
Since my language is C++, i will use that here
// passes a pointer (c...
What is a “cache-friendly” code?
...you can find detailed examples covering languages ranging from assembly to C++.
If you are into videos, I strongly recommend to have a look at Herb Sutter's talk on machine architecture (youtube) (specifically check 12:00 and onwards!).
Slides about memory optimization by Christer Ericson (director...
What is __stdcall?
...
C or C++ itself do not define those identifiers. They are compiler extensions and stand for certain calling conventions. That determines where to put arguments, in what order, where the called function will find the return address...
“媒”出路？如今“媒体+行业”创业机会多得是 - 资讯 - 清泛网 - 专注C/C+...
...媒体价值的变现。“互联网+”的概念之所以如此盛行，不仅仅因为它是龙头企业大佬抛的概念，或是国家最高层面的领导捧场站台。其核心本质是因为互联网做为一个独立行业，自身的革新变化已经完成，此时，其做为基本工...
How to round a number to n decimal places in Java
... this IS WAY faster than using DecimalFormat. I looped using DecimalFormat 200 times, and this method. DecimalFormat took 14ms to complete the 200 loops, this method took less than 1ms. As I suspected, this is faster. If you get paid by the clock cycle, this is what you should be doing. I'm surprise...
How to detect a Christmas Tree? [closed]
...ng");
// 1. Threshold
threshold.setAttribute("threshold", 200);
threshold.process(tree.clone(), tree);
}
}
public static void main(String[] args) {
new ChristmasTree();
}
}
In the second step, the brightest points in the image are dilated in order to form shapes. T...