大约有 40,000 项符合查询结果（耗时：0.0412秒） [XML]
Android: Test Push Notification online (Google Cloud Messaging) [closed]
...very easy way to do this.
Open http://phpfiddle.org/
Paste following php script in box. In php script set API_ACCESS_KEY, set device ids separated by coma.
Press F9 or click Run.
Have fun ;)
<?php
// API access key from Google API's Console
define( 'API_ACCESS_KEY', 'YOUR-API-ACCESS-KEY-GO...
How to find the width of a div using vanilla JavaScript?
...
All Answers are right, but i still want to give some other alternatives that may work.
If you are looking for the assigned width (ignoring padding, margin and so on) you could use.
getComputedStyle(element).width; //returns...
How to pick just one item from a generator?
... would use the second syntax given in my answer, next(g). This will internally call g.__next__(), but you don't really have to worry about that, just as you usually don't care that len(a) internally calls a.__len__().
– Sven Marnach
Apr 10 '14 at 10:31
...
How do you serialize a model instance in Django?
...
You can easily use a list to wrap the required object and that's all what django serializers need to correctly serialize it, eg.:
from django.core import serializers
# assuming obj is a model instance
serialized_obj = serializers.serialize('json', [ obj, ])
...
In which situations do we need to write the __autoreleasing ownership qualifier under ARC?
...ents that are passed by reference (id *) and are autoreleased on return.
All of this is very well explained in the ARC transition guide.
In your NSError example, the declaration means __strong, implicitly:
NSError * e = nil;
Will be transformed to:
NSError * __strong error = nil;
When you c...
What does “Auto packing the repository for optimum performance” mean?
...rying to lock the same ref.
If gc --auto is fired in the middle of a script, gc's holding locks in the background could fail the script, which could never happen before 9f673f9.
Keep running pack-refs and "reflog --prune" in foreground to stop parallel ref updates. The remaining backgroun...
Why should we include ttf, eot, woff, svg,… in a font-face
...e ability to load a single font "in parts" so that a font that supports 20 scripts can be stored as "chunks" on disk instead, with browsers automatically able to load the font "in parts" as needed, rather than needing to transfer the entire font up front, further improving the typesetting experience...
Loop backwards using indices in Python?
... This is better than the accepted answer since it doesn't actually allocate all the numbers in memory (in Python 3 the accepted answer wouldn't either), plus it's more obvious what is happening.
– Blixt
Mar 23 '12 at 13:52
...
The source was not found, but some or all event logs could not be searched
...create a source. But that's probably an overkill.
I wrote this powershell script to create the event source at will. Save it as *.ps1 and run it with any privilege and it will elevate itself.
# CHECK OR RUN AS ADMIN
If (-NOT ([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentit...
Makefile, header dependencies
...vided by the gnu preprocessor are a bit confusing. However, the removal of all directories from the build target with -MM is documented and not a bug [gpp]:
By default CPP takes the name of the main input file, deletes any
directory components and any file suffix such as ‘.c’, and appends ...