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Copy array by value
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Use this:
let oldArray = [1, 2, 3, 4, 5];
let newArray = oldArray.slice();
console.log({newArray});
Basically, the slice() operation clones the array and returns a reference to a new array.
Also note that:
For reference...
Why charset names are not constants?
Charset issues are confusing and complicated by themselves, but on top of that you have to remember exact names of your charsets. Is it "utf8" ? Or "utf-8" ? Or maybe "UTF-8" ? When searching internet for code samples you will see all of the above. Why not just make them named constants and use ...
In Scala, what exactly does 'val a: A = _' (underscore) mean?
What exactly does val a: A = _ initialize a value to? Is this a typed null? Thanks.
2 Answers
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What is the meaning of the planned “private protected” C# access modifier?
...ar feature - Define and Consume Classes and Structs (C++/CLI) > Member visibility:
private protected -or- protected private - Member is protected inside the assembly but private outside the assembly.
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C# - Keyword usage virtual+override vs. new
...= new Bar ();
Console.WriteLine (test.DoSomething ());
}
}
This prints false, if you used override it would have printed true.
(Base code taken from Joseph Daigle)
So, if you are doing real polymorphism you SHOULD ALWAYS OVERRIDE. The only place where you need to use "new" is when th...
Dot character '.' in MVC Web API 2 for request such as api/people/STAFF.45287
The URL I'm trying to let work is one in the style of: http://somedomain.com/api/people/staff.33311 (just like sites as LAST.FM allow all sort of signs in their RESTFul & WebPage urls, for example " http://www.last.fm/artist/psy'aviah " is a valid url for LAST.FM).
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Selectors in Objective-C?
First, I'm not sure I really understand what a selector is. From my understanding, it's the name of a method, and you can assign it to a class of type 'SEL' and then run methods such as respondToSelector to see if the receiver implements that method. Can someone offer up a better explanation?
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WordPress is giving me 404 page not found for all pages except the homepage
...link structure, which I could swear I did not touch. The permalink setting is on "month and name."
22 Answers
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Override body style for content in an iframe
...an iframe ? Note, the embedded body element has a class, and the iframe is of a page that is part of my site.
10 Answer...
UITableViewCell subview disappears when cell is selected
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UITableViewCell changes the background color of all sub views when cell is selected or highlighted ,You can Solve this problem by overriding Tableview cell's setSelected:animated and setHighlighted:animated and resetting view background color.
In Objective C :
- (void)setSelected:(BOOL)selected...