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@Basic(optional = false) vs @Column(nullable = false) in JPA
What's the difference between @Basic(optional = false) and @Column(nullable = false) in JPA persistence?
2 Answers
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How to discard local commits in Git?
I'd been working on something, and decided it was completely screwed...after having committed some of it. So I tried the following sequence:
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In C#, should I use string.Empty or String.Empty or “” to intitialize a string?
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Use whatever you and your team find the most readable.
Other answers have suggested that a new string is created every time you use "". This is not true - due to string interning, it will be created either once per assembly or once per AppDo...
How to get a complete list of object's methods and attributes?
...ble attributes, nothing more. You could though filter callable attributes, and, using the inspect module determine the class methods, methods or functions.
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Custom HTTP headers : naming conventions
... posted to deprecate the recommendation of using the "X-" prefix for non-standard headers. The reason is that when non-standard headers prefixed with "X-" become standard, removing the "X-" prefix breaks backwards compatibility, forcing application protocols to support both names (E.g, x-gzip & ...
What is the difference between gsub and sub methods for Ruby Strings
I have been perusing the documentation for String today, and I saw the :sub method, which I'd never noticed before. I've been using :gsub and it appears that they are essentially the same. Can anyone explain the difference to me? Thanks!
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Automatic HTTPS connection/redirect with node.js/express
...on. I fleshed out your answer (2nd paragraph) a little bit with some code and it works. In this scenario these code snippets are put in my express app:
// set up plain http server
var http = express();
// set up a route to redirect http to https
http.get('*', function(req, res) {
res.redire...
Binding multiple events to a listener (without JQuery)?
...ne element is more common now to cover the various interface types in use, and Isaac's answer offers a good use of built–in methods to reduce the code (though less code is, of itself, not necessarily a bonus). Extended with ECMAScript 2015 arrow functions gives:
function addListenerMulti(el, s, f...
Add swipe to delete UITableViewCell
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if (editingStyle == UITableViewCellEditingStyle.Delete) {
// handle delete (by removing the data from your array and updating the tableview)
}
}
Swift 3.0:
override func tableView(_ tableView: UITableView, canEditRowAt indexPath: IndexPath) -> Bool {
return true
}
overrid...
What size should apple-touch-icon.png be for iPad and iPhone?
Are Apple touch icons bigger than 60x60 supported, and if so, what dimensions should I use for the iPad and iPhone?
11 Answ...