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Xcode debugging - displaying images
...ole, use chisel command "visualize"
tip:
after the installation, you can set a conditional breakpoint after setting the UIImage with the action:
"visualize myUIImageToShowWithQuickLook"
this will show you the image automatically when the debugger stops.
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Is there a way to pass optional parameters to a function?
...es this is the simpler and more straightforwad solution than Jim's. If you set the default value to None then you can check if the parameter was passed or not. The only case where Jim's solution is better is if it's important to distinguish between passing None as the argument and not passing an arg...
Can't append element
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Setting script.type is unnecessary.
– Mathias Bynens
Feb 13 '12 at 11:58
5
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Static Indexers?
...ic object this[string value]
{
get => new object();
set => // set something
}
}
Now you can call Utilities.ConfigurationManager["someKey"] using indexer notation.
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How to check for an active Internet connection on iOS or macOS?
...chability* reachability = [Reachability sharedReachability];
[reachability setHostName:@"www.example.com"]; // Set your host name here
NetworkStatus remoteHostStatus = [reachability remoteHostStatus];
if (remoteHostStatus == NotReachable) { }
else if (remoteHostStatus == ReachableViaWiFiNetwork)...
django admin - add custom form fields that are not part of the model
...ave the extra fields appearing in the admin just:
edit your admin.py and set the form property to refer to the form you created above
include your new fields in your fields or fieldsets declaration
Like this:
class YourModelAdmin(admin.ModelAdmin):
form = YourModelForm
fieldsets = (
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How do I catch an Ajax query post error?
... .fail( function(xhr, textStatus, errorThrown) {
alert(xhr.responseText);
});
Prior to jQuery 1.8, the function done was called success and fail was called error.
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SQL - many-to-many table primary key
...o your new table), or you can create an id column to the mapping table and set unique constraint to the original compound primary key while the new id column will become the primary key.
– Vočko
Sep 17 '19 at 3:10
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Resetting a multi-stage form with jQuery
I have a form with a standard reset button coded thusly:
30 Answers
30
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$on and $broadcast in angular
...essary when changing the model outside of the angular framework (like in a setTimeout, a dialog callback, or an ajax callback), in other words $apply() is already triggered after all code in .$on() is finished.
– th3uiguy
Jun 24 '15 at 10:05
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