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Logcat not displaying my log calls
... a bit quircky, and sometimes only shows the last line in the logcat view. If this happens, try to clear the log. After that, you should get all the log entries again (works for me anyway).
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iPhone : How to detect the end of slider drag?
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If you don't need any data inbetween drag, than you should simply set:
[mySlider setContinuous: NO];
This way you will receive valueChanged event only when the user stops moving the slider.
Swift 5 version:
mySlider.isCo...
Solving “Who owns the Zebra” programmatically?
...n in Python based on constraint-programming:
from constraint import AllDifferentConstraint, InSetConstraint, Problem
# variables
colors = "blue red green white yellow".split()
nationalities = "Norwegian German Dane Swede English".split()
pets = "birds dog cats horse zebra".split(...
How to use the CancellationToken property?
... void Work(CancellationToken cancelToken)
{
while (true)
{
if(cancelToken.IsCancellationRequested)
{
return;
}
Console.Write("345");
}
}
That's it. You always need to handle cancellation by yourself - exit from method when it is appropriate t...
Setting the filter to an OpenFileDialog to allow the typical image formats?
..., how can I allow it to accept all typical image formats? PNG, JPEG, JPG, GIF?
11 Answers
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Stop execution of Ruby script
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Like @webwurst says in the other answer, use abort to specify a failed end to the script, and exit for a successful end.
– Jrgns
Jul 1 '14 at 6:04
add a comme...
How do I add a tool tip to a span element?
...title="My tip">text</span>
That gives you plain text tooltips. If you want rich tooltips, with formatted HTML in them, you'll need to use a library to do that. Fortunately there are loads of those.
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Should enums in C# have their own file? [closed]
... Usually there's one class that's most closely associated. But if that changes, if someone comes along at a time decides to take a dependency on the enum, then it's time for a refactor.
– Brennan Pope
Sep 18 '15 at 16:06
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R - Markdown avoiding package loading messages
...ing in a chunk.
```{r include=FALSE}
source("C:/Rscripts/source.R")
```
If you only want to suppress messages, use message=FALSE instead:
```{r message=FALSE}
source("C:/Rscripts/source.R")
```
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Find rows with multiple duplicate fields with Active Record, Rails & Postgres
...l).having("count(*) > 1")
Also, this is a little unrelated but handy. If you want to see how times each combination was found, put .size at the end:
User.select(:first,:email).group(:first,:email).having("count(*) > 1").size
and you'll get a result set back that looks like this:
{[nil, n...