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What does the 'b' character do in front of a string literal?
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@Gweebz - if you're actually typing out a string in a particular encoding instead of with unicode escapes (eg. b'\xff\xfe\xe12' instead of '\u32e1').
– detly
Jun 8 '11 at 2:44
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Fastest way to tell if two files have the same contents in Unix/Linux?
...e same data or not. I do this a for a lot of files, and in my script the diff command seems to be the performance bottleneck.
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Validate a username and password against Active Directory?
...e a username and password against Active Directory? I simply want to check if a username and password are correct.
13 Answe...
Transposing a NumPy array
...ly as it's supposed to. The transpose of a 1D array is still a 1D array! (If you're used to matlab, it fundamentally doesn't have a concept of a 1D array. Matlab's "1D" arrays are 2D.)
If you want to turn your 1D vector into a 2D array and then transpose it, just slice it with np.newaxis (or None,...
Check if all values of array are equal
... might be a bit late to the party... i think this doesn't work if your array is made of falses! for example try [false, false, false].reduce(function(a, b){return (a === b)?a:false;});
– George Flourentzos
Nov 27 '14 at 19:21
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How can I programmatically get the MAC address of an iphone
... MAC
Somthing I stumbled across a while ago. Originally from here I modified it a bit and cleaned things up.
IPAddress.h
IPAddress.c
And to use it
InitAddresses();
GetIPAddresses();
GetHWAddresses();
int i;
NSString *deviceIP = nil;
for (i=0; i<MAXADDRS; ++i)
{
static unsigned long lo...
YouTube iframe API: how do I control an iframe player that's already in the HTML?
I want to be able to control iframe based YouTube players. This players will be already in the HTML, but I want to control them via the JavaScript API.
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What is the meaning of addToBackStack with null parameter?
...n and bring back the
previous fragment by pressing the Back button.
If you add multiple changes to the transaction (such as another add()
or remove()) and call addToBackStack(), then all changes applied
before you call commit() are added to the back stack as a single
transaction and the...
How to know if user is logged in with passport.js?
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If user is logged in, passport.js will create user object in req for every request in express.js, which you can check for existence in any middleware:
if (req.user) {
// logged in
} else {
// not logged in
}
You ca...
Convert Float to Int in Swift
I want to convert a Float to an Int in Swift. Basic casting like this does not work because these types are not primitives, unlike float s and int s in Objective-C
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