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Pry: show me the stack
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Use the pry-stack_explorer plugin, it allows you to move up and down the call-stack (with up and down), display the callstack (with show-stack), and so on:
see here:
Frame number: 0/64
From: /Users/johnmair/ruby/rails_projects/personal_site/app/controllers/posts_controller.rb @ line 7 PostsCont...
What does the (unary) * operator do in this Ruby code?
...gt; puts a, b, c
>> end
=> nil
>> func(1, 2, 3) #we can call func with three parameters
1
2
3
=> nil
>> list = [1, 2, 3]
=> [1, 2, 3]
>> func(list) #We CAN'T call func with an array, even though it has three objects
ArgumentError: wrong number of arguments (1 f...
Pass complex parameters to [Theory]
...this method generates will be then "unpacked" as a parameters for a single call to your [Theory] method.
Another option is ClassData, which works the same, but allows to easily share the 'generators' between tests in different classes/namespaces, and also separates the 'data generators' from the ac...
Triggering HTML5 Form Validation
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@Mattisdada Calling .submit() does not work for me. @philfreo's solution works. Hmm.
– Zero3
Nov 2 '15 at 1:37
1
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What does __FILE__ mean in Ruby?
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Double underscores were automatically removed within the comment above.
– Luke Bayes
Sep 9 '09 at 21:30
1
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Getting an empty JQuery object
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$();
Returning an Empty Set
As of jQuery 1.4, calling the jQuery() method with no arguments returns an empty jQuery set (with a .length property of 0). In previous versions of jQuery, this would return a set containing the document node.
Source: api.jquery.com
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JUnit tests pass in Eclipse but fail in Maven Surefire
...w, the earlier Logback context was held, with DEBUG on. This caused extra calls to be made in RestTemplate to log HttpStatus, etc.
It's another thing to check if one ever gets into this situation. I fixed my problem by injecting some Mocks into my Logback test class, so that no real Logback contex...
How to find a parent with a known class in jQuery?
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He only wants a single parent, so he should call closest.
– SLaks
Mar 17 '11 at 12:51
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Is there a Java API that can create rich Word documents? [closed]
...d OpenOffice.org's Universal Network Objects (UNO) interface to programmatically generate MS-Word compatible documents (*.doc), as well as corresponding PDF documents, from a Java Web application (a Struts/JSP framework).
OpenOffice UNO also lets you build MS-Office-compatible charts, spreadsheet...
What is hashCode used for? Is it unique?
...er is based on the
System.Collections.IEqualityComparer interface.
Basically, hash codes exist to make hashtables possible.
Two equal objects are guaranteed to have equal hashcodes.
Two unequal objects are not guaranteed to have unequal hashcodes (that's called a collision).
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