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How to get the Android device's primary e-mail address
...be
// a primary email address if the user hasn't specified one.
ContactsContract.Contacts.Data.IS_PRIMARY + " DESC");
}
@Override
public void onLoadFinished(Loader<Cursor> cursorLoader, Cursor cursor) {
List<String> emails = new ArrayL...
How many concurrent AJAX (XmlHttpRequest) requests are allowed in popular browsers?
...mlHttpRequest (on any tab) to the same domain is fired, it is queued until one of the other 6 finish.
8 Answers
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Use JNI instead of JNA to call native code?
...d a jni wrapper
If you need a lot of memory copying. For example, you call one method which returns you a large byte buffer, you change something in it, then you need to call another method which uses this byte buffer. This would require you to copy this buffer from c to java, then copy it back from...
Update value of a nested dictionary of varying depth
...idea, i.e. a recursive solution, but somewhat peculiar coding and at least one bug. I'd recommend, instead:
Python 2:
import collections
def update(d, u):
for k, v in u.iteritems():
if isinstance(v, collections.Mapping):
d[k] = update(d.get(k, {}), v)
else:
...
How to understand Locality Sensitive Hashing?
...d a question about the cosine. The presentation says that the bit value is one if the dot product between the actual vector and the plane vector >= 0 or else it is 0. What is the direction of the plane vector because angles between 90 degrees and 180 degrees also will give a cosine which is negat...
How can I check if a string represents an int, without using try/except?
...he strings that Python considers integers. I say just be pythonic on this one.
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What does %w(array) mean?
..., %i, %W, %I) as it is aligned with the standard array literals.
# bad
%w(one two three)
%i(one two three)
# good
%w[one two three]
%i[one two three]
For more read here.
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CSS margin terror; Margin adds space outside parent element [duplicate]
...d some good explaining. No solution is really 100% satisfying. But I guess one just have to live with it, margin must work this way or text formatting would be impossible. 99% of time it works as needed. But every now and then comes the issue when designing a layout. :P
– jamie...
What is the most efficient way to deep clone an object in JavaScript?
What is the most efficient way to clone a JavaScript object? I've seen obj = eval(uneval(o)); being used, but that's non-standard and only supported by Firefox . I've done things like obj = JSON.parse(JSON.stringify(o)); but question the efficiency. I've also seen recursive copying funct...
How do I disable the “Press ENTER or type command to continue” prompt in Vim?
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I'm not sure how to do it globally though for one command:
:silent !<command>
Be sure to include a space after silent
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