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Best way to define error codes/strings in Java?
... service in Java, and I am trying to figure out the best way to define error codes and their associated error strings . I need to have a numerical error code and an error string grouped together. Both the error code and error string will be sent to the client accessing the web service. For example,...
Shards and replicas in Elasticsearch
...an elasticsearch node which tries to join an existing cluster if available or creates a new one. Let's say you created your own new cluster with a single node, the one that you just started up. We have no data, therefore we need to create an index.
When you create an index (an index is automaticall...
What's better to use in PHP, $array[] = $value or array_push($array, $value)?
What's better to use in PHP for appending an array member,
10 Answers
10
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How do I break a string over multiple lines?
... have a string that's very long. I want to keep this within the 80-column (or so) view of my editor, so I'd like to break the string. What's the syntax for this?
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jQuery: Return data after ajax call success [duplicate]
...synchronous call, but that would freeze up the browser while it's waiting for the response.
You can pass in a callback function that handles the result:
function testAjax(handleData) {
$.ajax({
url:"getvalue.php",
success:function(data) {
handleData(data);
}
});
}
Call i...
What is the JavaScript >>> operator and how do you use it?
...ugh JavaScript's Numbers are double-precision floats(*), the bitwise operators (<<, >>, &, | and ~) are defined in terms of operations on 32-bit integers. Doing a bitwise operation converts the number to a 32-bit signed int, losing any fractions and higher-place bits than 32, before ...
Who is listening on a given TCP port on Mac OS X?
On Linux, I can use netstat -pntl | grep $PORT or fuser -n tcp $PORT to find out which process (PID) is listening on the specified TCP port. How do I get the same information on Mac OS X?
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HTML5 doctype putting IE9 into quirks mode?
... Yup, that did the trick... Could you please explain this a little bit for me?
– Abhishek
Jun 30 '11 at 4:15
8
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What is the printf format specifier for bool?
Since ANSI C99 there is _Bool or bool via stdbool.h . But is there also a printf format specifier for bool?
8 Answer...
Confusion between factor levels and factor labels
There seems to be a difference between levels and labels of a factor in R.
Up to now, I always thought that levels were the 'real' name of factor levels, and labels were the names used for output (such as tables and plots). Obviously, this is not the case, as the following example shows:
...