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QuotaExceededError: Dom exception 22: An attempt was made to add something to storage that exceeded
...de to work.
UPDATE: This has been fixed in Safari 11, so the behaviour is now aligned with other browsers.
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Difference between final and effectively final
...eferenced from a lambda expression must be final or effectively final . I know that when I use variables inside anonymous class they must be final in outer class, but still - what is the difference between final and effectively final ?
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What is the difference between “ is None ” and “ ==None ”
...mparison is implemented elementwise:
import numpy as np
a = np.zeros(3) # now a is array([0., 0., 0.])
a == None #compares elementwise, outputs array([False, False, False]), i.e. not boolean!!!
a is None #compares object to object, outputs False
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Spinlock versus Semaphore
... few threads are contending for the lock at the same time. Of course every now and then two threads will try to acquire the lock at the same time (if this couldn't happen you wouldn't need a lock!), but this is rather the exception than the rule in a "healthy" system.
In such a case, a spinlock g...
Python: reload component Y imported with 'from X import Y'?
... Wow. I found this really handy. Thanks! I use this as one liner now: import X; reload( X ); from X import Y
– otterb
Apr 23 '14 at 22:26
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How to debug Google Apps Script (aka where does Logger.log log to?)
... this answer,
Stackdriver Logging is the preferred method of logging now.
Use console.log() to log to Stackdriver.
Logger.log will either send you an email (eventually) of errors that have happened in your scripts, or, if you are running things from the Script Editor, you can view the ...
Counting array elements in Python [duplicate]
...ay? for example, when I'm looping that array, i get some index and how to know how much index is in?
– isnaini barochatun
May 9 at 13:06
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Detect encoding and make everything UTF-8
...sses all this issues. It´s called Encoding::toUTF8().
You don't need to know what the encoding of your strings is. It can be Latin1 (ISO 8859-1), Windows-1252 or UTF-8, or the string can have a mix of them. Encoding::toUTF8() will convert everything to UTF-8.
I did it because a service was giving...
ERROR 1452: Cannot add or update a child row: a foreign key constraint fails
...ill need to update the data in the child table (instead of deleting them).
Now, we can utilize Left Join to find all those rows in the child table, which does not have matching values in the parent table. Following query would be helpful to fetch those non-matching rows:
SELECT child_table.*
FROM c...
How can Xcode 6 adaptive UIs be backwards-compatible with iOS 7 and iOS 6?
...lasses that have a Compact Height. This has been confirmed by Apple and is now stated directly in the documentation:
For apps supporting versions of iOS earlier than iOS 8, most size classes are backward compatible.
Size classes are backward compatible when:
- The app is built using Xcode version 6...