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How to find out client ID of component for ajax update/render? Cannot find component with expression
..., <h:dataTable>, <p:tabView>, <cc:implementation> (thus, all composite components), etc. You recognize them easily by looking at the generated HTML output, their ID will be prepended to the generated client ID of all child components. Note that when they don't have a fixed ID, then...
“On-line” (iterator) algorithms for estimating statistical median, mode, skewness, kurtosis?
...wness, and/or kurtosis of set of values, but that does NOT require storing all the values in memory at once?
13 Answers
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Understanding the Event Loop
...nd get executed.
There's only 1 thread in the node process that will actually execute your program's JavaScript. However, within node itself, there are actually several threads handling operation of the event loop mechanism, and this includes a pool of IO threads and a handful of others. The key i...
Comparing date ranges
...
This is a classical problem, and it's actually easier if you reverse the logic.
Let me give you an example.
I'll post one period of time here, and all the different variations of other periods that overlap in some way.
|-------------------| com...
Given a number, find the next higher number which has the exact same set of digits as the original n
...the right, you find the first pair-of-digits such that the left-digit is smaller than the right-digit. Let's refer to the left-digit by "digit-x". Find the smallest number larger than digit-x to the right of digit-x, and place it immediately left of digit-x. Finally, sort the remaining digits in ...
How to check if an array field contains a unique value or another array in MongoDB?
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db.blogpost.find({ 'tags' : 'tag1'}); //1
db.blogpost.find({ 'tags' : { $all : [ 'tag1', 'tag2' ] }}); //2
db.blogpost.find({ 'tags' : { $in : [ 'tag3', 'tag4' ] }}); //3
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ByteBuffer.allocate() vs. ByteBuffer.allocateDirect()
To allocate() or to allocateDirect() , that is the question.
4 Answers
4
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Deleting queues in RabbitMQ
...rgin state.
Removes the node from any cluster it belongs to, removes all data from
the management database, such as configured users and vhosts, and
deletes all persistent messages.
So, be careful using it.
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When should we use intern method of String on String literals
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Java automatically interns String literals. This means that in many cases, the == operator appears to work for Strings in the same way that it does for ints or other primitive values.
Since interning is automatic for String literals, the ...
What exactly is metaprogramming?
...gram can examine information about itself. For example returning a list of all the properties of an object.
In languages like ActionScript, you can evaluate functions at runtime to create new programs such as eval("x" + i). DoSomething() would affect an object called x1 when i is 1 and x2 when i is...