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How to perform element-wise multiplication of two lists?
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On the other hand, if they want to do anything else beyond the trivial case here the OP would be well advised to use Numpy.
– Henry Gomersall
Apr 22 '12 at 20:41
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What's the difference between and
...h <T extends Foo> it will become Foo under erasure. (This can matter if you're trying to retain compatibility with a pre-generics API that used Object.)
Source: http://download.oracle.com/javase/tutorial/extra/generics/convert.html; it explains why the JDK's java.util.Collections class has a ...
Dynamic SQL - EXEC(@SQL) versus EXEC SP_EXECUTESQL(@SQL)
...query plan reuse. When using sp_executesql, parameters are explicitly identified in the calling signature. This excellent article descibes this process.
The oft cited reference for many aspects of dynamic sql is Erland Sommarskog's must read: "The Curse and Blessings of Dynamic SQL".
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What does get-task-allow do in Xcode?
...this value is set to YES that targets Debug profiles, and another that specifies NO, targeting Distribution profiles?
– Greg Maletic
Feb 9 '11 at 1:27
2
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Select row with most recent date per user
... No need for subqueries! Moreover, this solution doesn't work if there are two records with exactly the same time. There is no need to try reinvent the wheel every time, as this is common problem - instead, go for already tested and optimized solutions - @Prodikl see my answer.
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How to jump from Intellij terminal to editor with shortcut
...map > Other > Terminal
The main "issue" this question discusses is if there is a way to return from the terminal window to the editor without closing the terminal window.
[End March 2016 update]
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Some options I can think of at the moment....
Java Class that implements Map and keeps insertion order?
... remove, according to the Javadocs, while LinkedHashMap is O(1) for each.
If your API that only expects a predictable sort order, as opposed to a specific sort order, consider using the interfaces these two classes implement, NavigableMap or SortedMap. This will allow you not to leak specific imple...
how to get the host url using javascript from the current page
...stname;
or possibly
var host = "http://"+window.location.hostname;
or if you like concatenation
var protocol = location.protocol;
var slashes = protocol.concat("//");
var host = slashes.concat(window.location.hostname);
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How do I pass multiple attributes into an Angular.js attribute directive?
...rective can access any attribute that is defined on the same element, even if the directive itself is not the element.
Template:
<div example-directive example-number="99" example-function="exampleCallback()"></div>
Directive:
app.directive('exampleDirective ', function () {
ret...
How to understand nil vs. empty vs. blank in Ruby
I find myself repeatedly looking for a clear definition of the differences of nil? , blank? , and empty? in Ruby on Rails. Here's the closest I've come:
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