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Inspect element that only appear when other element is mouse overed/entered

Often I want to inspect an element (e.g. tooltip) that only appears when another element is mouse overed/entered. The element that appears, is made visible via jQuery's mouseenter event. ...
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Why use @PostConstruct?

In a managed bean, @PostConstruct is called after the regular Java object constructor. 5 Answers ...
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Django - how to create a file and save it to a model's FileField?

... generate a new file and overwrite the existing one whenever a model instance is saved: 3 Answers ...
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What does -save-dev mean in npm install grunt --save-dev

...ted using Grunt.js . It is pretty hard to set up and I am at the point of creating a package.json file. 6 Answers ...
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How do I build a numpy array from a generator?

How can I build a numpy array out of a generator object? 5 Answers 5 ...
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How to use Greek symbols in ggplot2?

My categories need to be named with Greek letters. I am using ggplot2 , and it works beautifully with the data. Unfortunately I cannot figure out how to put those greek symbols on the x axis (at the tick marks) and also make them appear in the legend. Is there any way to do it? ...
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HttpURLConnection timeout settings

I want to return false if the URL takes more then 5 seconds to connect - how is this possible using Java? Here is the code I am using to check if the URL is valid ...
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ASP.NET MVC: Is Controller created for every request?

Very simple question: Are controllers in ASP.NET created for every HTTP request, or are they created at application startup and reused throughout requests? ...
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Can you call ko.applyBindings to bind a partial view?

I'm using KnockoutJS and have a main view and view model. I want a dialog (the jQuery UI one) to popup with another view which a separate child view model to be bound to. ...
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SQL update trigger only when column is modified

By looking at other examples I've come up with the following but it doesn't seem to work as I would like: I want it to only update the modified information if the QtyToRepair value has been updated... but it doesn't do that. ...