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Insert the carriage return character in vim
...tored a file in Unix ( \n newlines). I need to insert the carriage return character ( U+000D aka \r ). When I try to paste it from the clipboard ( "+p ) or type it using Ctrl + Shift + u - 000d , the linefeed is inserted ( U+000A ).
...
Multiple aggregations of the same column using pandas GroupBy.agg()
...what the arguments are. As
usual, the aggregation can be a callable or a string alias.
You can now pass a tuple via keyword arguments. The tuples follow the format of (<colName>, <aggFunc>).
import pandas as pd
pd.__version__ ...
wget/curl large file from google drive
... https://drive.google.com/open?id=0B7_OwkDsUIgFWXA1B2FPQfV5S8H. Obtain the string behind the ?id= and copy it to your clipboard. That's the file's ID.
Download the file. Of course, use your file's ID instead in the following command.
gdrive download 0B7_OwkDsUIgFWXA1B2FPQfV5S8H
At first usage, t...
Why are quaternions used for rotations?
... because they can do more than rotations. But in the case of rotations the extra components are determined in terms of the others.
– JMP
Jan 18 '12 at 23:45
2
...
How to initialize a struct in accordance with C programming language standards
...lize a struct this way:
typedef struct Item {
int a;
float b;
char* name;
} Item;
int main(void) {
Item item = { 5, 2.2, "George" };
return 0;
}
An important thing to remember, at the moment you initialize even one object/ variable in the struct, all of its other variables wi...
How do I pass command line arguments to a Node.js program?
...ecause options that start with a single dash are only supposed to a single character. Anything that follows a single char option is taken as an argument for the option (no space required). Starting the option with two dashes (i.e. --n5) should produce 'n5: true'. This is fairly standard behaviour fo...
What's the difference between KeyDown and KeyPress in .NET?
...ctical difference between KeyDown and KeyPress is that KeyPress relays the character resulting from a keypress, and is only called if there is one.
In other words, if you press A on your keyboard, you'll get this sequence of events:
KeyDown: KeyCode=Keys.A, KeyData=Keys.A, Modifiers=Keys.None
Key...
CSS: bolding some text without changing its container's size
... and @workaholic_gangster911's ::after drawing trick, which leaves awkward extra space so the bold text can expand without nudging neighboring text items (I put the attribution after the bold text so you can see how it does not move).
In the future, we'll have more variable fonts capable of thing...
SQLAlchemy: Creating vs. Reusing a Session
... of expire_on_commit pretty much optional, as this flag can incur a lot of extra SQL for an operation that calls commit() in the middle of a series of operations. Not sure if this answers your question.
The next round is what you mention about threading. If your app is multithreaded, we recomme...
Generic deep diff between two objects
...TED;
},
isFunction: function (x) {
return Object.prototype.toString.call(x) === '[object Function]';
},
isArray: function (x) {
return Object.prototype.toString.call(x) === '[object Array]';
},
isDate: function (x) {
return Object.prototype.toString.call(x) ...