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What is the use of Enumerable.Zip extension method in Linq?
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what if I want zip to continue where one list run out of elements? in which case the shorter list element should take default value. Output in this case to be A1, B2, C3, D0, E0.
– liang
Nov 19 '15 at 3:29
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jQuery Validate - require at least one field in a group to be filled
...'m using the excellent jQuery Validate Plugin to validate some forms. On one form, I need to ensure that the user fills in at least one of a group of fields. I think I've got a pretty good solution, and wanted to share it. Please suggest any improvements you can think of.
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Running multiple commands in one line in shell
...or is && operator to execute the next command only if the previous one succeeded:
cp /templates/apple /templates/used && cp /templates/apple /templates/inuse && rm /templates/apple
Or
cp /templates/apple /templates/used && mv /templates/apple /templates/inuse
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How to find the kth smallest element in the union of two sorted arrays?
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As @JohnKurlak mentioned it doesn't work for values where whole a is smaller than b see repl.it/HMYf/0
– Jeremy S.
Apr 17 '17 at 16:29
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Proper way to handle multiple forms on one page in Django
I have a template page expecting two forms. If I just use one form, things are fine as in this typical example:
10 Answers...
What does extern inline do?
... and externally visible. Hence you can only have such an inline defined in one compilation unit, and every other one needs to see it as an out-of-line function (or you'll get duplicate symbols at link time).
extern inline will not generate an out-of-line version, but might call one (which you theref...
How to make a Java class that implements one interface with two generic types?
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Here's a possible solution based on Steve McLeod's one:
public class TwoTypesConsumer {
public void consumeTomato(Tomato t) {...}
public void consumeApple(Apple a) {...}
public Consumer<Tomato> getTomatoConsumer() {
return new Consumer<Tomato>...
What are the mathematical/computational principles behind this game?
...tly different than the Euclidean geometry:
Every two points have exactly one line that passes through them (this is the same).
Every two lines meet in exactly one point (this is a bit different from Euclid).
Now, add "finite" into the soup and you have the question:
Can we have a geometry with ...
What's the difference between @JoinColumn and mappedBy when using a JPA @OneToMany association
...ect annotations would look like this:
@Entity
public class Company {
@OneToMany(fetch = FetchType.LAZY, mappedBy = "company")
private List<Branch> branches;
}
@Entity
public class Branch {
@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "companyId")
private Company ...
Java concurrency: Countdown latch vs Cyclic barrier
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One major difference is that CyclicBarrier takes an (optional) Runnable task which is run once the common barrier condition is met.
It also allows you to get the number of clients waiting at the barrier and the number requ...