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Deleting array elements in JavaScript - delete vs splice
...king it appear undefined. The Chrome dev tools make this distinction clear by printing empty when logging the array.
> myArray[0]
undefined
> myArray
[empty, "b", "c", "d"]
myArray.splice(start, deleteCount) actually removes the element, reindexes the array, and changes its length.
>...
Git “error: The branch 'x' is not fully merged”
...mmits and they don't seem identical.
Therefore you could avoid the warning by checking out a branch that does contain the commits that you're about un-reference by deleting that other branch.²
You will want to verify that you in fact aren't missing any vital commits:
git log --graph --left-right --...
Add more than one parameter in Twig path
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You can pass as many arguments as you want, separating them by commas:
{{ path('_files_manage', {project: project.id, user: user.id}) }}
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Autowiring two beans implementing same interface - how to set default bean to autowire?
...viceDao implements DeviceDao
Or if you want your Jdbc version to be used by default:
<bean id="jdbcDeviceDao" primary="true" class="com.initech.service.dao.jdbc.JdbcDeviceDao">
@Primary is also great for integration testing when you can easily replace production bean with stubbed version ...
How to define object in array in Mongoose schema correctly with 2d geo index
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You can declare trk by the following ways : -
either
trk : [{
lat : String,
lng : String
}]
or
trk : { type : Array , "default" : [] }
In the second case during insertion make the object and push it into the array like
db.u...
Why is Scala's immutable Set not covariant in its type?
...spective. Sets are "built up" from the Zermelo-Fraenkel axioms not reduced by some inclusion function. The reason behind this is Russell's paradox: if anything can be a member of a set, then consider the Set R of sets which are not members of themselves. Then ask the question, is R a member of R?
...
What is the fundamental difference between WebSockets and pure TCP?
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By RFC6455, WebSocket needs a handshake in HTTP first and then the protocol upgrades to WebSocket. Most of the browser follow this. I don't know how your client side(browser) will support, if you are using any protocol in ser...
Xcode 4 - detach the console/log window
... tab out into another window (drag it off the tab bar into its own window by just letting it drop outside the current window). Now reform it to your hearts content; it will stay that way. Also don't forget the little controls at the top right of the console window that slide the local variable disp...
How can I read a whole file into a string variable
I have lots of small files, I don't want to read them line by line.
5 Answers
5
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Why / when would it be appropriate to override ToString?
... you get a string representation of your object in another way? Yes.
But by using ToString you are using a method that is common to all objects and thus other classes know about this method. For instance, whenever the .NET framework wants to convert an object to a string representation, ToString i...