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config.assets.compile=true in Rails production, why not?
...are altered to include the MD5 hash.
Sprockets also sets the Cache-Control HTTP header to max-age=31536000. This signals all caches between your server and the client browser that this content (the file served) can be cached for 1 year. The effect of this is to reduce the number of requests for this...
See changes to a specific file using git
...
Use a command like:
git diff file_2.rb
See the git diff documentation for full information on the kinds of things you can get differences for.
Normally, git diff by itself shows all the changes in the whole repository (not just the current directory).
...
How to allocate aligned memory only using the standard library?
... malloc(1024+16);
void *ptr = ((char *)mem+16) & ~ 0x0F;
memset_16aligned(ptr, 0, 1024);
free(mem);
}
Fixed answer
{
void *mem = malloc(1024+15);
void *ptr = ((uintptr_t)mem+15) & ~ (uintptr_t)0x0F;
memset_16aligned(ptr, 0, 1024);
free(mem);
}
Explanation as ...
Convert SVG image to PNG with PHP
...ck:
$usmap = '/path/to/blank/us-map.svg';
$im = new Imagick();
$svg = file_get_contents($usmap);
/*loop to color each state as needed, something like*/
$idColorArray = array(
"AL" => "339966"
,"AK" => "0099FF"
...
,"WI" => "FF4B00"
,"WY" => "A3609B"
);
foreach($i...
Calling method using JavaScript prototype
... and then calling it from the overriden method, like so
MyClass.prototype._do_base = MyClass.prototype.do;
MyClass.prototype.do = function(){
if (this.name === 'something'){
//do something new
}else{
return this._do_base();
}
};
...
How to find gaps in sequential numbering in mysql?
...rks on table of any size (not just on 100 rows):
SELECT (t1.id + 1) as gap_starts_at,
(SELECT MIN(t3.id) -1 FROM arrc_vouchers t3 WHERE t3.id > t1.id) as gap_ends_at
FROM arrc_vouchers t1
WHERE NOT EXISTS (SELECT t2.id FROM arrc_vouchers t2 WHERE t2.id = t1.id + 1)
HAVING gap_ends_at IS ...
惨不忍睹：说一说你最穷的时候是什么样子 - 创意 - 清泛网 - 专注C/C++及内核技术
...道
@EZ汽车人：在北京一个月吃饭花200
@贰拾壹-_- ：拉屎拉一半，怕饿得快。。。。。。
类型二：不敢出门+避免社交型
@螺丝脱落司机：开启免打扰模式，然后各种宅。
@猪脚L:穷到家里待了一个星...
Troubleshooting “Illegal mix of collations” error in mysql
...ERE clause will always give the error you posted:
WHERE 'A' COLLATE latin1_general_ci = 'A' COLLATE latin1_general_cs
Your solution is to specify a shared collation for the two columns within the query. Here is an example that uses the COLLATE clause:
SELECT * FROM table ORDER BY key COLLATE lat...
What is the difference between MOV and LEA?
...erence. LEA has more abilities, though, and you can read about them here:
http://www.oopweb.com/Assembly/Documents/ArtOfAssembly/Volume/Chapter_6/CH06-1.html#HEADING1-136
share
|
improve this answe...
What is the difference between concurrency and parallelism?
...
Concurrency is when two or more tasks can start, run, and complete in overlapping time periods. It doesn't necessarily mean they'll ever both be running at the same instant. For example, multitasking on a single-core machine.
Parallelism is when tasks literally run at the same ti...