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How Python web frameworks, WSGI and CGI fit together
...s
http://docs.djangoproject.com/en/dev/howto/deployment/#howto-deployment-index
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Saving an Object (Data persistence)
...1 — similar to referencing the last element of a sequence via a negative index.
So, instead of writing:
pickle.dump(obj, output, pickle.HIGHEST_PROTOCOL)
You can just write:
pickle.dump(obj, output, -1)
Either way, you'd only have specify the protocol once if you created a Pickler object for...
In Firebase, is there a way to get the number of children of a node without loading all the node dat
...://github.com/firebase/functions-samples/blob/master/child-count/functions/index.js
Update January 2018
The firebase docs have changed so instead of event we now have change and context.
The given example throws an error complaining that event.data is undefined. This pattern seems to work better:...
What is the difference between a strongly typed language and a statically typed language?
...== false) {
// not found
}
The error here is that strpos() returns the index of the match, being 0. 0 is coerced into boolean false and thus the condition is actually true. The solution is to use === instead of == to avoid implicit conversion.
This example illustrates how a combination of impli...
What's the need of array with zero elements?
...variable-size data member. By declaring it as a 0-length array, it can be indexed just as any other array. You'd then allocate a bts_action struct, of say 1024-byte data size, like so:
size_t size = 1024;
struct bts_action* action = (struct bts_action*)malloc(sizeof(struct bts_action) + size);
...
How to style a checkbox using CSS
...8 and lower versions.
.myCheckbox input {
position: relative;
z-index: -9999;
}
.myCheckbox span {
width: 20px;
height: 20px;
display: block;
background: url("link_to_image");
}
.myCheckbox input:checked + span {
background: url("link_to_another_image");
}
<lab...
通信连接组件 · App Inventor 2 中文网
...glat
调用百度地图的uri参考地址：https://lbsyun.baidu.com/index.php?title=uri/api/web
打开系统照相机（比照相机组件打开的界面会丰富一些）
Action: android.media.action.STILL_IMAGE_CAMERA
可选取多个文件（图片、音频、...
How do I get Windows to go as fast as Linux for compiling C++?
...able last access time: fsutil behavior set disablelastaccess 1
Disable the indexing service
Disable your anti-virus and anti-spyware software, or at least set the relevant folders to be ignored.
Put your files on a different physical drive from the OS and the paging file. Using a separate physical d...
Is recursion ever faster than looping?
...med. The more you "IO", the more you have to process. Un-IOing data (aka indexing) is always the biggest performance boost to any system because you don't have to process it in the first place.
– Jeff Fischer
Dec 28 '18 at 19:52
...
Git commits are duplicated in the same branch after doing a rebase
...before rebase. Git default pull configuration is "merge". This is changing indexes of commits performed on the child branch.
The solution: in Git configuration file, configure pull to work in rebase mode:
...
[pull]
rebase = preserve
...
Hope it can help
JN Grx
...