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Saving a Numpy array as an image
... type of a Numpy array. How would I write it to disk it as an image? Any format works (png, jpeg, bmp...). One important constraint is that PIL is not present.
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Check that an email address is valid on iOS [duplicate]
...rString : laxString;
NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex];
return [emailTest evaluateWithObject:checkString];
}
Discussion on Lax vs. Strict - http://blog.logichigh.com/2010/09/02/validating-an-e-mail-address/
And because categories are j...
How can I rename a field for all documents in MongoDB?
...}. You need the multi:true to update all your records.
Or you can use the former way:
remap = function (x) {
if (x.additional){
db.foo.update({_id:x._id}, {$set:{"name.last":x.name.additional}, $unset:{"name.additional":1}});
}
}
db.foo.find().forEach(remap);
In MongoDB 3.2 you can also...
Linux command or script counting duplicated lines in a text file?
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Thumbs up for the little -d note.
– sepehr
Feb 10 '15 at 13:04
add a comment
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How to find out if you're using HTTPS without $_SERVER['HTTPS']
...was not made through the HTTPS protocol. (Same behaviour has been reported for IIS7 running PHP as a Fast-CGI application).
Also, Apache 1.x servers (and broken installations) might not have $_SERVER['HTTPS'] defined even if connecting securely. Although not guaranteed, connections on port 443 are...
Dynamic variable names in Bash
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declare -h in 4.2.45(2) for me shows declare: usage: declare [-aAfFgilrtux] [-p] [name[=value] ...]. You might double-check that you are actually running 4.x and not 3.2.
– chepner
Dec 2 '13 at 16:08
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Getting distance between two points based on latitude/longitude
I tried implementing this formula: http://andrew.hedges.name/experiments/haversine/
The aplet does good for the two points I am testing:
...
Can I have onScrollListener for a ScrollView?
...) to it using the method addOnScrollChangedListener().
You can see more information about this class here.
It lets you be aware of every scrolling event - but without the coordinates. You can get them by using getScrollY() or getScrollX() from within the listener though.
scrollView.getViewTreeObs...
What is the difference between char s[] and char *s?
...doesn't have to be in read-only memory (some implementations have no MMUs, for example). The n1362 c1x draft simply states that modifying such an array causes undefined behavior. But +1 anyway, since relying on that behavior is a silly thing to do.
– paxdiablo
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How can I use “sizeof” in a preprocessor macro?
...ux). At the ((void)sizeof(... it errors with expected identifier or '(' before 'void' and expected ')' before 'sizeof'. But in principle size_t x = (sizeof(... instead does work as intended. You have to "use" the result, somehow. To allow for this to be called multiple times either inside a funct...