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How to make a function wait until a callback has been called using node.js
..., here goes: (1) Use C to implement your function and publish it to NPM in order to use it. That's what the sync methods do. (2) Use fibers, github.com/laverdet/node-fibers, (3) Use promises, for example the Q-library, (4) Use a thin layer on top of javascript, that looks blocking, but compiles to a...
How to keep onItemSelected from firing off on a newly instantiated Spinner?
...uld be run from one of the main thread methods e.g. onCreate(), onResume() etc. In that case, its a fantastic trick, with no danger of race condition. I normally use this trick in onCreate() just after the layout code.
– Richard Le Mesurier
Aug 14 '13 at 9:30
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AngularJS - How can I do a redirect with a full page load?
...ld up the new destination URL, using current $location.url() if needed. In order to work, this new one had to include everything after schema, domain and port. So e.g. if you want to move to:
http://yourdomain.com/YourAppFolder/YourAngularApp/#/YourArea/YourAction?culture=en
then you should set U...
Python memory usage of numpy arrays
...ngling' numpy.ndarray's, in particular the ones that are stored in _1, _2, etc that were never really meant to stay alive.
I use this code to get a listing of all of them and their size.
Not sure if locals() or globals() is better here.
import sys
import numpy
from humanize import naturalsize
...
How to convert lazy sequence to non-lazy in Clojure
...esults, so all you need to do is walk the lazy seq once (as doall does) in order to force it all, and thus render it non-lazy. seq does not force the entire collection to be evaluated.
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sed whole word search and replace
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How do you manage databases in development, test, and production?
...elopment, and a maintenance branch for bug fixes, short term enhancements, etc. Inevitably, the need arose to make changes to the schema in the branch. At this point, we already had dbChanges_n+1.sql in the Trunk, so we ended up going with a scheme like the following:
dbChanges_n.1.sql
dbChanges_n...
How to copy directories in OS X 10.7.3?
... directory haseebjaved just like other folders such as Downloads, Desktop, etc.
– hjaved
Mar 21 '12 at 0:45
I'm using ...
What is the difference between 'log' and 'symlog'?
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I finally found some time to do some experiments in order to understand the difference between them. Here's what I discovered:
log only allows positive values, and lets you choose how to handle negative ones (mask or clip).
symlog means symmetrical log, and allows positive a...
What does -D_XOPEN_SOURCE do/mean?
...with the downside that it might not compile on Solaris, FreeBSD, Mac OS X, etc.
It's a good idea to check each man page before doing a #include, #define, or using a new function, because sometimes their behavior changes depending on what options and #defines you have, for example with basename(3).
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