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Lambda expression to convert array/List of String to array/List of Integers
...the accepted answer are not needed. Streams can be used with lambdas or usually shortened using Method References. Streams enable functional operations. map() converts the elements and collect(...) or toArray() wrap the stream back up into an array or collection.
Venkat Subramaniam's talk (video) e...
Is GridFS fast and reliable enough for production?
I develop a new website and I want to use GridFS as storage for all user uploads, because it offers a lot of advantages compared to a normal filesystem storage.
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“Variable” variables in Javascript?
...usly consider that). It is possible to access some global variables dynamically via window, but that doesn't work for variables local to a function. Global variables that do not become a property of window are variables defined with let and const, and classes.
There is almost always a better soluti...
Stop/Close webcam which is opened by navigator.getUserMedia
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EDIT
Since this answer has been originally posted the browser API has changed.
.stop() is no longer available on the stream that gets passed to the callback.
The developer will have to access the tracks that make up the stream (audio or video) and stop each of th...
Calling a Java method with no name
... System.out.print("x ");
}
is a static initialization block, and is called when the class is loaded. You can have as many of them in your class as you want, and they will be executed in order of their appearance (from top to bottom).
This:
{
System.out.print("y ");
}
is an ...
Access multiple elements of list knowing their index
...3, 8, 5, 6])
b = [1, 2, 5]
print(list(a[b]))
# Result:
[1, 5, 5]
But really, your current solution is fine. It's probably the neatest out of all of them.
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How do I set vertical space between list items?
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specifically, use margin on the li elements not the ul element.
– duanev
Apr 21 at 2:00
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(Deep) copying an array using jQuery [duplicate]
...y an (ordered, not associative) array of objects. I'm using jQuery. I initially tried
8 Answers
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open read and close a file in 1 line of code
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You don't really have to close it - Python will do it automatically either during garbage collection or at program exit. But as @delnan noted, it's better practice to explicitly close it for various reasons.
So, what you can do to keep ...
How to uninstall editable packages with pip (installed with -e)
I have installed some packages with -e
6 Answers
6
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