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How to detect internet speed in JavaScript?
...idth tests are notoriously unreliable, being as they are impacted by other items being downloaded in other windows, the speed of your server, links en route, etc., etc. But you can get a rough idea using this sort of technique.
...
What does the arrow operator, '->', do in Java?
...lambda expression.
It means that, from the listOfCars, arg0 is one of the items of that list.
With that item he is going to do, hence the ->, whatever is inside of the brackets.
In this example, he's going to return a list of cars that fit the condition
Car.SEDAN == ((Car)arg0).getStyle();
...
How do I get around type erasure on Scala? Or, why can't I get the type parameter of my collections?
...ar map= Map.empty[Any,(Manifest[_], Any)]
def register[T](name: Any, item: T)(implicit m: Manifest[T]) {
map = map.updated(name, m -> item)
}
def get[T](key:Any)(implicit m : Manifest[T]): Option[T] = {
map get key flatMap {
case (om, s) => if (om <:< m) Some(s...
What is the difference between Directory.EnumerateFiles vs Directory.GetFiles?
...he whole collection first in memory is too heavy. You can just process the items as they come and forget them.
– Stéphane Gourichon
Jan 7 '16 at 18:49
1
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How to use UIScrollView in Storyboard
...rollView !), and set its Y position to for example -250, so you can add an item that is 'outside' the screen
Drop in a label, somewhere at the bottom of the screen, name it 'label 2'. This label is actually 'off screen'.
Reset the Y position of the enclosing view to 0, you'll no longer see label 2,...
Linking static libraries to other static libraries
...dd the other libraries you want combined with X (Right Click, Add Existing Item...).
Go to their properties and make sure Item Type is Library
This will include the other libraries in X as if you ran
lib /out:X.lib X.lib other1.lib other2.lib
...
Get a list of distinct values in List
...ive some performance benefit, if we doesn't care about order and have more items in the list.
– Sai
Oct 22 '15 at 20:58
1
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Any reason not to use '+' to concatenate two strings?
...re, especially if it is growing. With list you can use list.extend(list_of_items) and list.append(item) which are much faster when concatenating stuff dynamically.
– Antti Haapala
Sep 11 '12 at 9:56
...
Sort JavaScript object by key
...one did even mention the stability in sorting! So bear with me I'll try my best to answer the question itself and go into details here. So I'm going to apologize now it will be a lot to read.
Since it is 2018 I will only use ES6, the Polyfills are all available at the MDN docs, which I will link at...
How to combine two or more querysets in a Django view?
...being faster, but I didn't see a noticeable speed difference for a million item list.
from operator import attrgetter
result_list = sorted(
chain(page_list, article_list, post_list),
key=attrgetter('date_created'))
...