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Does R have an assert statement as in python?
a statement that checks if something is true and if not prints a given error message and exits
3 Answers
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“aapt” IOException error=2, No such file or directory" why can't I build my gradle on jenkins?
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I had the following similar error on Ubuntu 13.10:
Cannot run program "/usr/local/android-sdk-linux/build-tools/19.0.3/aapt": error=2, No such file or directory
And this answer fixed it for me:
To get aapt working (this fixed my issues with the av...
No submodule mapping found in .gitmodule for a path that's not a submodule
...in order to avoid the "No submodule mapping found in .gitmodules for path" error message.
You can check all the entries in the index which are referencing submodules:
git ls-files --stage | grep 160000
Previous answer (November 2010)
It is possible that you haven't declared your initial submo...
ASP.NET Web API OperationCanceledException when browser cancels the request
...e requests are canceled by the browser. Our ELMAH HttpModule then logs two errors for each canceled request:
7 Answers
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What is the “FS”/“GS” register intended for?
...ss of thread_local data is a happy unintended consequence of an historical error.
– Richard Hodges
Jan 4 '18 at 12:41
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show 48 more comment...
Objective-C pass block as parameter
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Example
-(void) saveWithCompletionBlock: (void (^)(NSArray *elements, NSError *error))completionBlock{
// your code
}
Other use of cases:
2. Block as a Property
Template
@property (nonatomic, copy) returnType (^blockName)(parameters);
Example
@property (nonatomic,copy)void (^compl...
“Could not find bundler” error
When I try to do bundler update I get this error:
15 Answers
15
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Properties order in Margin
...rgin="a,a,a,a".
Example: if we use Margin="20" it generates:
Update 2020-05-27
Have been working on a large-scale WPF application for the past 5 years with over 100 screens. Part of a team of 5 WPF/C#/Java devs. We eventually settled on either using 1 number (for border thickness) or 4 numbers. We...
What's the state of the art in email validation for Rails?
...you're going to send an email. If the email fails, you're going to get an error message. At which point you can tell the user "Sorry, your friend didn't receive that, would you like to try again?" or flag it for manual review, or just ignore it, or whatever.
These are the same options you'd have ...
AJAX Mailchimp signup form integration
...cate if the request was successful or not ( I've only ever seen 2 values, "error" and "success" ) and 'msg' - a message describing the result.
I submit my forms with this bit of jQuery:
$(document).ready( function () {
// I only have one form on the page but you can be more specific if need b...