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What is the best regular expression to check if a string is a valid URL?
... @Gumbo, it's allowed in the spec and used in URI implementations for HTTP applications. It's discouraged (for obvious reasons) but perfectly valid and should be anticipated. Most (if not all?) browsers sometimes translate HTTP authentication into the URL for subsequent access.
...
Most efficient way to create a zero filled JavaScript array?
...one liner. Here is what I do:
If I want to pre-fill with a number:
Array.apply(null, Array(5)).map(Number.prototype.valueOf,0);
// [0, 0, 0, 0, 0]
If I want to pre-fill with a string:
Array.apply(null, Array(3)).map(String.prototype.valueOf,"hi")
// ["hi", "hi", "hi"]
Other answers have sug...
How to specify an area name in an action link?
...e a shared master page which I am using from 2 different areas in my mvc 2 app. The master page has an action link which currently specifies the controller and action, but of course the link doesn't work if I'm in the wrong area. I see no overload for actionlink that takes an area parameter, is it...
Renew Push certificate and keep current App Store App working
I have an app on app store, which is using an iOS Provisioning Profile (Distribution) which is expired.
This Profile contains Push Certificate that's also expired (and does not appear anymore in the portal).
...
Do NSUserDefaults persist through an Update to an app in the Appstore?
...this the case? Do NSUserDefaults get reset when you submit an update to an app on the App Store, or are they reset?
6 Answe...
How to download Xcode DMG or XIP file?
Where does the Mac App Store download the files to under Lion? I need the DMG file in order to repair something in my system, but how can I access that file?
...
Learning Python from Ruby; Differences and Similarities
...That doesn't flow very nicely. So, typically the following non-functional approach would be used in Python:
for value in collection:
...
Using resources in a safe way is quite different between the two languages. Here, the problem is that you want to allocate some resource (open a file, obtain...
Creating and Update Laravel Eloquent
...et the price to $99.
// If no matching model exists, create one.
$flight = App\Flight::updateOrCreate(
['departure' => 'Oakland', 'destination' => 'San Diego'],
['price' => 99]
);
which pretty much clears everything.
Query Builder Update
Someone has asked if it is possible using Qu...
How to check for an active Internet connection on iOS or macOS?
...nswers below are synchronous so be careful otherwise you'll freeze up your app.
Swift
1) Install via CocoaPods or Carthage: https://github.com/ashleymills/Reachability.swift
2) Test reachability via closures
let reachability = Reachability()!
reachability.whenReachable = { reachability in
...
Android: Difference between onInterceptTouchEvent and dispatchTouchEvent?
... the touch point coordinates.
But before it can dispatch the event to the appropriate child view, the parent can spy and/or intercept the event all together. This is what onInterceptTouchEvent is there for. So it calls this method first before doing the hit testing and if the event was hijacked (by...