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Difference between Array and List in scala
In what cases I should use Array(Buffer) and List(Buffer). Only one difference that I know is that arrays are nonvariant and lists are covariant. But what about performance and some other characteristics?
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How does Hadoop process records split across block boundaries?
...nteresting question, I spent some time looking at the code for the details and here are my thoughts. The splits are handled by the client by InputFormat.getSplits, so a look at FileInputFormat gives the following info:
For each input file, get the file length, the block size and calculate the spli...
Remove an onclick listener
I have an object where the text cycles and displays status messages. When the messages change, I want the click event of the object to change to take you to the activity that the message is relating to.
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How to get the children of the $(this) selector?
... for what it's worth: jQuery("img", this) is internally converted into: jQuery(this).find("img") So the second is ever so slightly faster. :)
– Paul Irish
Jan 8 '10 at 23:49
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How to inspect Javascript Objects
...lert(JSON.stringify(object)) with a modern browser?
In case of TypeError: Converting circular structure to JSON, here are more options: How to serialize DOM node to JSON even if there are circular references?
The documentation: JSON.stringify() provides info on formatting or prettifying the output...
SQL statement to get column type
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FROM INFORMATION_SCHEMA.COLUMNS
WHERE
TABLE_NAME = 'yourTableName' AND
COLUMN_NAME = 'yourColumnName'
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How to avoid type safety warnings with Hibernate HQL results?
...ateUtils.listAndCast(q);
I'll get a compile error: Type mismatch: cannot convert from List to ArrayList
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How do I turn off PHP Notices?
...ing JSON or XML or whatever, you might want to turn these off. Or at least convert them into exceptions and handle them accordingly.
– TheRealChx101
Oct 10 '18 at 20:18
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What's the most efficient test of whether a PHP string ends with another string?
...eedle), but this method requires that and copying it in full, and possibly converting the entire thing into lowercase to boot.
– David Harkness
Aug 9 '16 at 6:01
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What makes Scala's operator overloading “good”, but C++'s “bad”?
Operator overloading in C++ is considered by many to be A Bad Thing(tm), and a mistake not to be repeated in newer languages. Certainly, it was one feature specifically dropped when designing Java.
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