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How to calculate the bounding box for a given lat/lng location?
...oximation).
My implementation follows (It's written in Python; I have not tested it):
# degrees to radians
def deg2rad(degrees):
return math.pi*degrees/180.0
# radians to degrees
def rad2deg(radians):
return 180.0*radians/math.pi
# Semi-axes of WGS-84 geoidal reference
WGS84_a = 6378137...
软件测试中的性能测试、负载测试、压力测试 - 更多技术 - 清泛网 - 专注C/C...
...试可以包括不同的测试类型，例如：性能测试(Performance Test)、负载测试(Load Test)和压力测试(Stress Test)。这三种效率测试类型，不仅在具体定义上面有不同的侧重点，同时相互之间又是密切关联的。
1)性能测试
性能测试主要评价...
Best JavaScript compressor [closed]
...pressor and Google Closure, it compresses better than YUI on all scripts I tested it on, and it's safer than Closure (knows to deal with "eval" or "with").
Other than whitespace removal, UglifyJS also does the following:
changes local variable names (usually to single characters)
joins consecutiv...
String literals and escape characters in postgresql
...cated the text needed to be preceded with 'E', as such:
insert into EscapeTest (text) values (E'This is the first part \n And this is the second');
This suppressed the warning, but the text was still not being returned correctly. When I added the additional slash as Michael suggested, it worked.
...
Convert a Git folder to a submodule retrospectively?
....26.2 below. Older versions might work to some extend but that needs to be tested.
For the sake of simplicity I will restrict myself to the case where there is just a master branch and a origin remote in the original repo repo-old. Also be warned that I rely on temporary git tags with the prefix te...
Re-enabling window.alert in Chrome
...esult in us spending two weeks to go through each one of these cases. Plus testing, and we are pushing for a release right now. So this allows us to notify the user that they have managed to check that box in firefox or chrome.
– DeadlyChambers
May 19 '14 at 1...
Illegal string offset Warning PHP
...
Please try this way.... I have tested this code.... It works....
$memcachedConfig = array("host" => "127.0.0.1","port" => "11211");
print_r($memcachedConfig['host']);
share...
On showing dialog i get “Can not perform this action after onSaveInstanceState”
...ected void onResume()
{
super.onResume();
sHandler.removeCallbacks(test);
}
@Override
protected void onPause()
{
super.onPause();
sHandler.postDelayed(test, 5000);
}
Runnable test = new Runnable()
{
@Override
public void run()
{
if (mIsAfterOnSaveInstanceState)
...
How can I visualize per-character differences in a unified diff file?
.... is interpreted as a path. You can verify with mkdir x y; echo foo > x/test; git add x/test; git commit -m test; echo boo > x/test; cd y; git diff --color-words=.; git diff --color-words .; git diff --color-words -- ..
– ntc2
Sep 4 '15 at 16:43
...
Python loop counter in a for loop [duplicate]
... I checked both with the following: python -m timeit "s = 'String used for testing'; ''.join(str(i)+str(c) for i, c in enumerate(s))" and python -m timeit "s = 'String used for testing'; ''.join(str(i)+str(s[i]) for i in xrange(len(s)))". Each of them averaged on 8.83 usec per loop over 100,000 loop...