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defaultdict of defaultdict?
...ultdict(int)) will be called when you try to access a key that don't exist and the return value of it will be set as the new value of this key which mean in our case the value of d[Key_dont_exist] will be defaultdict(int), and if you try to access a key from this last defaultdict i.e. d[Key_dont_exi...
How to extract request http headers from a request using NodeJS connect
...ove: "The req object is an enhanced version of Node’s own request object and supports all built-in fields and methods." that contains a link pointing to the Node documentation of the underlying object.
– Serge N
May 15 at 19:30
...
Download File to server from URL
Well, this one seems quite simple, and it is. All you have to do to download a file to your server is:
10 Answers
...
What is resource-ref in web.xml used for?
...reason, you'll need to update all the references in all your applications, and then rebuild and redeploy them.
<resource-ref> introduces another layer of indirection: you specify the name you want to use in the web.xml, and, depending on the container, provide a binding in a container-specifi...
What is this: [Ljava.lang.Object;?
...f the class of which the object is an instance, the at-sign character `@', and the unsigned hexadecimal representation of the hash code of the object. In other words, this method returns a string equal to the value of:
getClass().getName() + '@' + Integer.toHexString(hashCode())
Note: you can no...
Showing line numbers in IPython/Jupyter Notebooks
...er keyboard shortcuts.
In more details CTRL - M (or ESC) bring you to command mode, then pressing the L keys should toggle the visibility of current cell line numbers. In more recent notebook versions Shift-L should toggle for all cells.
If you can't remember the shortcut, bring up the command pal...
fatal: 'origin' does not appear to be a git repository
...ou have cloned.
you can also type from within your repo:
git remote -v
And see if there is any remote named 'origin' listed in it.
If not, if that remote (which is created by default when cloning a repo) is missing, you can add it again:
git remote add origin url/to/your/fork
The OP mentio...
extra qualification error in C++
... need to change it to the following code to be able to compile it with a standard compliant compiler (gcc is more compliant to the standard on this point).
class JSONDeserializer
{
Value ParseValue(TDR type, const json_string& valueString);
};
The error come from the fact that JSONDeseria...
How do you suppress output in IPython Notebook?
...Good thing to know is %%capture is only enabled until the end of the cell, and it must appear before any code in the cell. (So it appears there isn't a way to uncapture within a cell.)
– Arel
Oct 17 '16 at 19:32
...
Custom Drawable for ProgressBar/ProgressDialog
...tes.xml declares the colors of the different states:
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item android:id="@android:id/background">
<shape>
<gradient
android:startColor="#000001"
...