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MongoDB not equal to
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Use $ne instead of $not
http://docs.mongodb.org/manual/reference/operator/ne/#op._S_ne
db.collections.find({"name": {$ne: ""}});
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How do I compare two files using Eclipse? Is there any option provided by Eclipse?
...se Install Software via Eclipse->Help->Install New Software screen):
http://andrei.gmxhome.de/eclipse/
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Simplest PHP example for retrieving user_timeline with Twitter API version 1.1
...e unauthenticated requests? Not with Twitter's v1.1 API.
You need to visit http://dev.twitter.com/apps and click the "Create Application" button.
On this page, fill in whatever details you want. For me, it didn't matter, because I just wanted to make a load of block requests to get rid of spam foll...
How to immediately see compile errors in project tree of IntelliJ Idea?
...or IntelliJ. It allows you to do incremental compile upon saving a file:
http://plugins.intellij.net/plugin/?id=3822
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Google Authenticator implementation in Python
...loaded it to GitHub as separate module called onetimepass (available here: https://github.com/tadeck/onetimepass).
import hmac, base64, struct, hashlib, time
def get_hotp_token(secret, intervals_no):
key = base64.b32decode(secret, True)
msg = struct.pack(">Q", intervals_no)
h = hmac...
What does the filter parameter to createScaledBitmap do?
...with interpolation, involving doing a series of 50% scale reductions. See http://today.java.net/pub/a/today/2007/04/03/perils-of-image-getscaledinstance.html for details.)
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How to get the index of a maximum element in a numpy array along one axis
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argmax() will only return the first occurrence for each row.
http://docs.scipy.org/doc/numpy/reference/generated/numpy.argmax.html
If you ever need to do this for a shaped array, this works better than unravel:
import numpy as np
a = np.array([[1,2,3], [4,3,1]]) # Can be of any shap...
Can you use hash navigation without affecting history?
...ge load.... Except when the document contains a base tag: <base href ="http://example.com/" /> If it does contain a base tag, then when you use the replace method with just a leading "#hash_value_here" it actually will be as if you said `location.replace('example.com/#hash_value_here'). Thi...
import .css file into .less file
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This will create an additional http-request for foo.css, so the (inline) directive (see stackoverflow.com/a/22594082/160968) is now preferrable
– Urs
Nov 18 '14 at 10:43
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How to choose the id generation strategy when using JPA and Hibernate
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A while ago i wrote a detailed article about Hibernate key generators: http://blog.eyallupu.com/2011/01/hibernatejpa-identity-generators.html
Choosing the correct generator is a complicated task but it is important to try and get it right as soon as possible - a late migration might be a nightm...