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Can you use a trailing comma in a JSON object?
When manually generating a JSON object or array, it's often easier to leave a trailing comma on the last item in the object or array. For example, code to output from an array of strings might look like (in a C++ like pseudocode):
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Fastest way to convert string to integer in PHP
... 0.42208
intval("hello"): 0.93678 (222%)
On average, calling intval() is two and a half times slower, and the difference is the greatest if your input already is an integer.
I'd be interested to know why though.
Update: I've run the tests again, this time with coercion (0 + ...
127 Return code from $?
...ommand, because it doesn't know where to find the binary you're trying to call.
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Get properties and values from unknown object
...swered Nov 10 '10 at 13:15
CocowallaCocowalla
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Random record in ActiveRecord
...ed Sep 24 '14 at 20:13
Jonathan Allard
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answered May 2 '10 at 12:09
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PG undefinedtable error relation users does not exist
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At first, you shall detach all connections out of database. By default you use the development environment. Then try to reset database with the following:
rake db:reset
The rake db:reset task will drop the database and set it up again....
IBOutlet and IBAction
...ements to your code.
If you're not going to be using Interface Builder at all, then you don't need them in your code, but if you are going to use it, then you need to specify IBAction for methods that will be used in IB and IBOutlet for objects that will be used in IB.
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Running code in main thread from another thread
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No. If you subclass Handler (or use Handler.Callback interface) your handleMessage() method will ONLY be called for messages that have been posted using your handler. The main thread is using a different handler to post/process messages so there is no conflict.
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How come a non-const reference cannot bind to a temporary object?
Why is it not allowed to get non-const reference to a temporary object,
which function getx() returns? Clearly, this is prohibited by C++ Standard
but I am interested in the purpose of such restriction, not a reference to the standard.
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How to customize an end time for a YouTube video?
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This shit changes all the time. Read the API developers.google.com/youtube/documentation
– PHearst
Aug 10 '15 at 17:55
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