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Basic HTTP authentication with Node and Express 4
...ord'} // change this
// parse login and password from headers
const b64auth = (req.headers.authorization || '').split(' ')[1] || ''
const [login, password] = Buffer.from(b64auth, 'base64').toString().split(':')
// Verify login and password are set and correct
if (login && passwor...
Max length for client ip address [duplicate]
...
For IPv4, you could get away with storing the 4 raw bytes of the IP address (each of the numbers between the periods in an IP address are 0-255, i.e., one byte). But then you would have to translate going in and out of the DB and t...
Android 4.3 Bluetooth Low Energy unstable
...ng an application that will use Bluetooth Low Energy (testing on the Nexus 4). After getting started with the official BLE APIs in Android 4.3, I have noticed that after I connect a device for the first time I am rarely able to successfully connect to / communicate with that device or any other devi...
“:” (colon) in C struct - what does it mean? [duplicate]
...creen.
struct
{
unsigned short icon : 8;
unsigned short color : 4;
unsigned short underline : 1;
unsigned short blink : 1;
} screen[25][80];
Edit: another important bit from the MSDN link:
Bit fields have the same semantics as the integer type. This means a
bit field is us...
How to get the nth element of a python list or a default if not available
...|
edited Jun 20 '18 at 19:48
John Kugelman
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Split comma-separated strings in a column into separate rows
...es.
For smaller data frames, Matt's base R solution and data.table method 4 seem to have less overhead than the other methods.
Code
director <-
c("Aaron Blaise,Bob Walker", "Akira Kurosawa", "Alan J. Pakula",
"Alan Parker", "Alejandro Amenabar", "Alejandro Gonzalez Inarritu",
"Ale...
Convert to binary and keep leading zeros in Python
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Use the format() function:
>>> format(14, '#010b')
'0b00001110'
The format() function simply formats the input following the Format Specification mini language. The # makes the format include the 0b prefix, and the 010 size formats the output to fit in 10 charac...
How to unzip a list of tuples into individual lists? [duplicate]
...
424
Use zip(*list):
>>> l = [(1,2), (3,4), (8,9)]
>>> list(zip(*l))
[(1, 3, 8),...
How do you set your pythonpath in an already-created virtualenv?
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mdeousmdeous
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