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Ruby convert Object to Hash
...> 15.95 }}
If you need a hash that's stored in the object use as_json(root: false). I think by default root will be false. For more info refer official ruby guide
http://api.rubyonrails.org/classes/ActiveModel/Serializers/JSON.html#method-i-as_json
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Express-js can't GET my static files, why?
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Simply write
app.use(express.static('public/images'));
i.e remove the root directory name in the path. And then you can use the static path effectively in other js files, For example:
<img src="/images/misc/background.jpg">
Hope this helps :)
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MongoDB Aggregation: How to get total records count?
...al' => array( '$sum' => 1 ), 'results' => array( '$push' => '$$ROOT' ) ),
// apply limit and offset
array('$project' => array( 'total' => 1, 'results' => array( '$slice' => array( '$results', $skip, $length ) ) ) )
))
Result will look something like this:
[
{
"_id"...
推荐系统算法初探 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...显然匹配前两个词都不如直接匹配英超来得准确，系统该如何体现出关键词的这种“重要性”呢？这时我们便可以引入词权的概念。在大量的语料库中通过计算（比如典型的TF-IDF算法），我们可以算出新闻中每一个关键词的权重...
Hiding a password in a python script (insecure obfuscation only)
...e script with elavated permission and have the password file owned by that root/admin user.
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Importing files from different folder
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If you run it from your root folder (ie. application folder), you are probably fine with sys.path.append('.') then importing the module by using from app2.some_folder.some_file import your_function. Alternatively what works for me is running python...
Extract a part of the filepath (a directory) in Python
...>> p.name
'iexplore.exe'
>>> p.suffix
'.exe'
>>> p.root
'\\'
>>> p.parts
('C:\\', 'Program Files', 'Internet Explorer', 'iexplore.exe')
>>> p.relative_to('C:\Program Files')
WindowsPath('Internet Explorer/iexplore.exe')
>>> p.exists()
True
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NullPointerException accessing views in onCreate()
...ent onCreateView(), calling findViewById() on the inflated fragment layout rootView:
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container,
false);
View somethin...
Rails: call another controller action from a controller
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if I try to redirect_to a root controller like "MyOtherController", from a controller like "Module::MyController".. it will resolve to calling "module/MyOtherController" .. any idea how I can call the root?
– ggez44
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How many socket connections can a web server handle?
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The clients would randomly select a server. The chances of all randomly connecting to one is practically impossible. Although one could follow up with client count and the server could ask a client to move to another server if too overcrowded.
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