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How can you sort an array without mutating the original array?
...n sort arrCopy without changing arr.
arrCopy.sort((obj1, obj2) => obj1.id > obj2.id)
Please note: this can be slow for very large arrays.
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Unique Key constraints for multiple columns in Entity Framework
...
Unique indexes in EntityFramework Core:
First approach:
protected override void OnModelCreating(ModelBuilder modelBuilder)
{
modelBuilder.Entity<Entity>()
.HasIndex(p => new {p.FirstColumn , p.SecondColumn}).IsUnique();
}
The second approach to create Unique Constraints with EF ...
How to specify the private SSH-key to use when executing shell command on Git?
...ve the key loaded.
Alternatively, setting HOME may also do the trick, provided you are willing to setup a directory that contains only a .ssh directory as HOME; this may either contain an identity.pub, or a config file setting IdentityFile.
...
How to make a SPA SEO crawlable?
...I am using MVC with Webapi controllers, and Phantomjs on the server side, and Durandal on the client side with push-state enabled; I also use Breezejs for client-server data interaction, all of which I strongly recommend, but I'll try to give a general enough explanation that will also h...
Best way to define private methods for a class in Objective-C
...
There isn't, as others have already said, such a thing as a private method in Objective-C. However, starting in Objective-C 2.0 (meaning Mac OS X Leopard, iPhone OS 2.0, and later) you can create a category with an empty name (i.e. @interface MyClass ()) called C...
What is the best way to deal with the NSDateFormatter locale “feechur”?
...t "NSDateFormatter+Locale.h"
@implementation NSDateFormatter (Locale)
- (id)initWithSafeLocale {
static NSLocale* en_US_POSIX = nil;
self = [self init];
if (en_US_POSIX == nil) {
en_US_POSIX = [[NSLocale alloc] initWithLocaleIdentifier:@"en_US_POSIX"];
}
[self setLocale...
SPAN vs DIV (inline-block)
...using the display CSS property but there is one issue: in terms of HTML validation, you can't put block elements inside inline elements so:
<p>...<div>foo</div>...</p>
is not strictly valid even if you change the <div> to inline or inline-block.
So, if your element ...
Injecting $scope into an angular service function()
...ing with the server.
var save = function (student) {
if (student.id === null) {
students.push(student);
} else {
for (var i = 0; i < students.length; i++) {
if (students[i].id === student.id) {
students[i] = student;
break;
...
Is it possible to use the instanceof operator in a switch statement?
...ario where subtype polymorphism helps. Do the following
interface I {
void do();
}
class A implements I { void do() { doA() } ... }
class B implements I { void do() { doB() } ... }
class C implements I { void do() { doC() } ... }
Then you can simply call do() on this.
If you are not free to ...
What is an xs:NCName type and when should it be used?
...NCNames (not qualified names):
namespace prefixes
values representing an ID
values representing an IDREF
values representing a NOTATION
processing instruction targets
entity names
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