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Listening for variable changes in JavaScript
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I know this is an old thread but now this effect is possible using accessors (getters and setters): https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_Objects#Defining_getters_and_setters
You can define an object like this, in which aInternal represents the field a:
x = {...
Change the mouse cursor on mouse over to anchor-like style
If I hover the mouse over a div the mouse cursor will be changed to the cursor like that in HTML anchor.
5 Answers
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std::unique_lock or std::lock_guard?
...will be locked only once on construction and unlocked on destruction.
So for use case B you definitely need a std::unique_lock for the condition variable. In case A it depends whether you need to relock the guard.
std::unique_lock has other features that allow it to e.g.: be constructed without l...
Accessing a Dictionary.Keys Key through a numeric index
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As @Falanwe points out in a comment, doing something like this is incorrect:
int LastCount = mydict.Keys.ElementAt(mydict.Count -1);
You should not depend on the order of keys in a Dictionary. If you need ordering, you should use an OrderedDictionary, as suggested in this answer. The other ...
Add Keypair to existing EC2 instance
...ply it to the instances so I can SSH in? Obtaining the exisiting pem file for the keypair the instances were created under is currently not an option.
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Android: Difference between Parcelable and Serializable?
Why does Android provide 2 interfaces for serializing objects? Do Serializable objects interopt with Android Binder and AIDL files?
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Override devise registrations controller
I have added a field to the sign-up form that is based on a different model, see How do I use nested attributes with the devise model for the gory details. This part is working fine.
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What is the difference between mocking and spying when using Mockito?
What would be a use case for a use of a Mockito spy?
5 Answers
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Determine if an HTML element's content overflows
...rrespective of scrollbars) if an HTML element has overflowed its content? For example, a long div with small, fixed size, the overflow property set to visible, and no scrollbars on the element.
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How can I use Bash syntax in Makefile targets?
... Bash syntax very helpful, e.g. process substitution like in diff <(sort file1) <(sort file2) .
6 Answers
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