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Can comments be used in JSON?
...gnated data element called "_comment" (or something) that would be ignored by apps that use the JSON data.
You would probably be better having the comment in the processes that generates/receives the JSON, as they are supposed to know what the JSON data will be in advance, or at least the structure...
java.lang.IllegalArgumentException: View not attached to window manager
...g for the duration of operation. The activity is declared NOT be recreated by rotation or keyboard slide.
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html5 - canvas element - Multiple layers
...ur canvas and you want to draw something at the back of it - you can do it by changing the context.globalCompositeOperation setting to 'destination-over' - and then return it to 'source-over' when you're done.
var context = document.getElementById('cvs').getContext('2d');
// Draw a re...
sqlalchemy unique across multiple columns
...sents locations. Locations "belong" to customers. Locations are identified by a unicode 10 character code. The "location code" should be unique among the locations for a specific customer.
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Get application version name using adb
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adb shell dumpsys package my.package | grep versionName
as mentioned by @david and @Jeremy Fishman. This will be much quicker than:
adb shell dumpsys | grep -A18 "Package \[my.package\]"
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Making text background transparent but not text itself
...d background transparent. Use a semi-transparent background-color instead, by using a rgba() value for example. Works on IE8+
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Significant new inventions in computing since 1980
..."distributed hypertext via simple mechanisms") as proposed and implemented by Tim Berners-Lee started in 1989/90.
While the idea of hypertext had existed before (Nelson’s Xanadu had tried to implement a distributed scheme), the WWW was a new approach for implementing a distributed hypertext syst...
Get original URL referer with PHP?
...ays be able to access the first referer that the site visitor was directed by.
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How to flatten only some dimensions of a numpy array
...- np.reshape can take -1 as an argument, meaning "total array size divided by product of all other listed dimensions":
e.g. to flatten all but the last dimension:
>>> arr = numpy.zeros((50,100,25))
>>> new_arr = arr.reshape(-1, arr.shape[-1])
>>> new_arr.shape
# (5000, 2...
Django import error - no module named django.conf.urls.defaults
...moved in Django 1.6. If the problem was in your own code, you would fix it by changing the import to
from django.conf.urls import patterns, url, include
However, in your case the problem is in a third party app, graphite. The issue has been fixed in graphite's master branch and version 0.9.14+.
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