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What does “javascript:void(0)” mean?
...ve got used to middle-click-for-new-tab: it looks like a link, you want to read it in a new tab, but it turns out to be not a real link at all, and gives unwanted results like a blank page or a JS error when middle-clicked.
<a href="#"> is a common alternative which might arguably be less bad...
Why does direction of index matter in MongoDB?
...ormally the performance hit is negligible (especially compared to gains in read performance), but that doesn't mean that we can't be smart about creating our indexes.
How Indexes
Identifying what group of fields should be indexed together is about understanding the queries that you are running. The ...
Safe (bounds-checked) array lookup in Swift, through optional bindings?
..."Banana", "Coconut"]
var str: String = "I ate a \( fruits[0] )"
If you already know the index exists, as you do in most cases where you use an array, this code is great. However, if accessing a subscript could possibly return nil then you have changed the return type of Array's subscript method to...
What are the differences between Rust's `String` and `str`?
... use String if you need owned string data (like passing strings to other threads, or building them at runtime), and use &str if you only need a view of a string.
This is identical to the relationship between a vector Vec<T> and a slice &[T], and is similar to the relationship between b...
Understanding implicit in Scala
...k
in view folder of app the template is declared like
@()(implicit requestHreader:RequestHeader)
in controller action is like
def index = Action{
implicit request =>
Ok(views.html.formpage())
}
if you do not mention request parameter as implicit explicitly then you must have been written-
...
How to set the prototype of a JavaScript object that has already been instantiated?
... an important use case and is one of the primary reasons __proto__ isn't already dead. It's important enough that it's been a serious discussion point in the formulation of Harmony, or soon to be known as ECMAScript 6. The ability to specify the prototype of an object during creation will be a part ...
Postgres and Indexes on Foreign Keys and Primary Keys
... @Matthias - Ah, got it. Thanks. Yeah, I obviously didn't take time to read through the code. It wasn't critical enough to bother. The OP could've mentioned the limitations. Maybe I'll check it out again sometime.
– juanitogan
Mar 31 '17 at 1:23
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JavaScript get clipboard data on paste event (Cross browser)
...
FYI: Edge now supports reading data with MIME-Type text/html using the W3C Clipboard API. In the past such an attempt would throw an exception. So one no longer needs this workaround/hack for Edge.
– Jenny O'Reilly
...
What does CultureInfo.InvariantCulture mean?
...cy values.
This will matter for you when you are converting input values (read) that are stored as strings to DateTime, float, double or decimal. It will also matter if you try to format the aforementioned data types to strings (write) for display or storage.
If you know what specific culture th...
What are the differences between git remote prune, git prune, git fetch --prune, etc
...anches you've created but never pushed to the server would be deleted, so tread carefully: git branch -r | awk '{print $1}' | egrep -v -f /dev/fd/0 <(git branch -vv | grep origin) | awk '{print $1}'
– Jason Walton
Sep 11 '14 at 2:59
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