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Equivalent of .try() for a hash to avoid “undefined method” errors on nil? [duplicate]
...reason why in the suggested form of this method (below) the (usually ugly) test for .is_a?(Hash) is used instead of (usually better) .respond_to?(:[]):
class Hash
def get_deep(*fields)
fields.inject(self) {|acc,e| acc[e] if acc.is_a?(Hash)}
end
end
a_hash = {:one => {:two => {:three ...
What is a method that can be used to increment letters?
...ell, == works, and if I wanted to be super sure, I could use ===, but I've tested it, and it's fine. Thanks again!
– Sean Kendle
Aug 19 '16 at 13:25
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How can I create an object based on an interface file definition in TypeScript?
...the class, it will show in compiled JS as an empty method. Example:
class TestClass {
a: number;
b: string;
c: boolean;
}
compiles into
var TestClass = (function () {
function TestClass() {
}
return TestClass;
})();
which carries no value. Interfaces, on the other hand,...
How to change language settings in R
...
For me worked:
Sys.setlocale("LC_MESSAGES", "en_US.utf8")
Testing:
> Sys.setlocale("LC_MESSAGES", "en_US.utf8")
[1] "en_US.utf8"
> x[3]
Error: object 'x' not found
Also working to get english messages:
Sys.setlocale("LC_MESSAGES", "C")
To reset to german messages I used
...
Mercurial error: abort no username supplied
... YOUR NAME <EMAIL@HOST.COM>
verbose = true
save and "hg commit -m 'test'"
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Using Auto Layout in UITableView for dynamic cell layouts & variable row heights
...lex311 Very interesting, thanks for providing this example. I did a little testing on my end and wrote up some comments here: github.com/Alex311/TableCellWithAutoLayout/commit/…
– smileyborg
Nov 18 '13 at 21:31
...
Center a popup window on screen?
...${h}, top=${y}, left=${x}`);
}
Implementation:
popupWindow('google.com', 'test', window, 200, 100);
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Convert all first letter to upper case, rest lower for each word
...
Untested but something like this should work:
var phrase = "THIS IS MY TEXT RIGHT NOW";
var rx = new System.Text.RegularExpressions.Regex(@"(?<=\w)\w");
var newString = rx.Replace(phrase,new MatchEvaluator(m=>m.Value.ToL...
Saving changes after table edit in SQL Server Management Studio
...d so that it is under source control. This also makes it easier to refresh testing changes after production has been pushed down to dev to enable developers to be working against fresher data.
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How do I auto size a UIScrollView to fit its content
...LayoutSubviews so the autolayout would finish, in iOS7 it worked well, but testing os iOS6 the autolayout for some reason didn't finish the work, so I had some wrong height values, so I switched to viewDidAppear now works fine.. just to point out maybe someone would need this. thanks
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