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Using Phonegap for Native Application development [closed]
... is forum's experience with Phonegap. What are the pain points and is it really scalable for enterprise level application development.
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Can hash tables really be O(1)?
...f your objects are variable size and an equality check requires looking at all bits then performance will become O(m). The hash function however does not have to be O(m) - it can be O(1). Unlike a cryptographic hash, a hash function for use in a dictionary does not have to look at every bit in the i...
What is a software framework? [closed]
...and again for the same type of applications, you create a framework having all those facilities together in one nice packet, hence providing the abstraction for your application and more importantly many applications.
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Java Singleton and Synchronization
...e loaded when it is needed. That means that the first time getInstance is called, InstanceHolder will be loaded and instance will be created, and since this is controlled by ClassLoaders, no additional synchronization is necessary.
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How to shrink/purge ibdata1 file in MySQL
...ng is a particularly annoying feature of MySQL. The ibdata1 file can't actually be shrunk unless you delete all databases, remove the files and reload a dump.
But you can configure MySQL so that each table, including its indexes, is stored as a separate file. In that way ibdata1 will not grow as la...
“Parser Error Message: Could not load type” in Global.asax
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Your local web server is running different code than what you're actually working on. Ensure you have stopped debugging, stop your local web server, clean and rebuild as Peter suggested, double-check your global.asax and global.asax.cs, and try again.
If this doesn't work and you are using lo...
UTF-8, UTF-16, and UTF-32
...ere UTF-16 remains at just 2 bytes for most characters.
UTF-32 will cover all possible characters in 4 bytes. This makes it pretty bloated. I can't think of any advantage to using it.
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Cannot simply use PostgreSQL table name (“relation does not exist”)
... is defined with a mixed-case spelling, and you're trying to query it with all lower-case.
In other words, the following fails:
CREATE TABLE "SF_Bands" ( ... );
SELECT * FROM sf_bands; -- ERROR!
Use double-quotes to delimit identifiers so you can use the specific mixed-case spelling as the tab...
How do I create test and train samples from one dataframe with pandas?
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In the newest SciKit version you need to call it now as: from sklearn.cross_validation import train_test_split
– horseshoe
Mar 22 '17 at 9:32
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How to select option in drop down protractorjs e2e tests
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I had a similar problem, and eventually wrote a helper function that selects dropdown values.
I eventually decided that I was fine selecting by option number, and therefore wrote a method that takes an element and the optionNumber, and selects that optionNumb...