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How to check for an active Internet connection on iOS or macOS?
...
Important: This check should always be performed asynchronously. The majority of answers 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...
Cocoa Autolayout: content hugging vs content compression resistance priority
... Click Me ]
and you've pinned the edges to a larger superview with priority 500.
Then, if Hugging priority > 500 it'll look like this:
[Click Me]
If Hugging priority < 500 it'll look like this:
[ Click Me ]
If the superview now shrinks then, if the Compression Res...
How do I create a namespace package in Python?
...you want to release related libraries as separate downloads. For example, with the directories Package-1 and Package-2 in PYTHONPATH ,
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How to use XPath in Python?
...t XPath? Is there a full implementation? How is the library used? Where is its website?
12 Answers
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When to favor ng-if vs. ng-show/ng-hide?
...attach the handler.
ng-show/ng-hide does not remove the elements from DOM. It uses CSS styles to hide/show elements (note: you might need to add your own classes). This way your handlers that were attached to children will not be lost.
ng-if creates a child scope while ng-show/ng-hide does not
Ele...
Listing and deleting Git commits that are under no branch (dangling?)
I've got a Git repository with plenty of commits that are under no particular branch, I can git show them, but when I try to list branches that contain them, it reports back nothing.
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Negative weights using Dijkstra's Algorithm
I am trying to understand why Dijkstra's algorithm will not work with negative weights. Reading an example on Shortest Paths , I am trying to figure out the following scenario:
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Getter and Setter declaration in .NET [duplicate]
...e that validates the value in your setter:
set
{
if (string.IsNullOrWhiteSpace(value))
throw new ArgumentNullException();
_myProperty = value;
}
Properties can also have different accessors for the getter and the setter:
public string MyProperty { get; private set; }
This way ...
Start ssh-agent on login
I have a site as a remote Git repo pulling from Bitbucket.com using an SSH alias. I can manually start the ssh-agent on my server but I have to do this every time I login via SSH.
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What's the difference between “Solutions Architect” and “Applications Architect”? [closed]
As far as I can see Solutions Architect is just a different "marketing" term for Applications Architect . Is that correct or are the roles actually different somehow? If so, how?
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