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NSLayoutConstraint crashes ViewController [duplicate]
I'm getting this error when clicking on a button in my app:
1 Answer
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How to convert an IPv4 address into a integer in C#?
...a test program to show both conversions, including the network/host byte swapping:
using System;
using System.Net;
class App
{
static long ToInt(string addr)
{
// careful of sign extension: convert to uint first;
// unsigned NetworkToHostOrder ought to be provided.
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Getting output of system() calls in Ruby
...y know if something changed in Ruby 2.0 or 2.1? Edits or comments would be appreciated;-)
– Simon Hürlimann
Jan 18 '14 at 22:12
1
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How to cancel a Task in await?
...sposed, second thing -- use ConfigureAwait otherwise you can be hurt in UI apps.
– astrowalker
Mar 14 '18 at 14:47
@as...
Getting the last element of a list
...stpones the inevitable "list index out of range" - and that's what should happen when attempting to get an element from an empty list. For Strings astr[-1:] could be a valid approach since it returns the same type as astr[-1], but I don't think the ':' helps to deal with empty lists (and the questio...
How to detect online/offline event cross-browser?
...cable.
Mozilla Firefox (before version 41), Opera, and IE take a different approach, and consider you "online" unless you explicitly pick "Offline Mode" in the browser - even if you don't have a working network connection.
There are valid arguments for the Firefox/Mozilla behavior, which are outline...
A reference to the dll could not be added
When I add a .dll file as a reference in C# application it shows an error :
17 Answers
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Why are joins bad when considering scalability?
...em through de-normalisation but if used correctly (joining on columns with appropriate indexes an so on) they are not inherently slow.
De-normalisation is one of many optimisation techniques you can consider if your well designed database schema exhibits performance problems.
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Is it possible to push a git stash to a remote repository?
... stash to a remote repository, retrieve the stash on another computer, and apply the stash?
11 Answers
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Creating a temporary directory in Windows?
...ption if tempDirectory already exists, this case won't be detected by your application. And then you may have two applications stepping on each other's work. Is there any safer alternative in .NET?
– Chris
Aug 20 '09 at 18:31
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