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Is there any difference between the `:key => “value”` and `key: “value”` hash notations?
...he problems with the JavaScript-style have been fixed in Ruby 2.2. You can now use quotes if you have symbols that aren't valid labels, for example:
h = { 'where is': 'pancakes house?', '$set': { a: 11 } }
But you still need the hashrocket if your keys are not symbols.
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String literals and escape characters in postgresql
... I was referring to strings in SQL statements, while you are now using a psql command. Do you get the same error using the COPY command instead of \copy?
– eppesuig
Nov 17 '11 at 12:14
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Dilemma: when to use Fragments vs Activities:
I know that Activities are designed to represent a single screen of my application, while Fragments are designed to be reusable UI layouts with logic embedded inside of them.
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Combine --user with --prefix error with setup.py install
...tall command as install --prefix=/usr/local. You have to override this specification using one of the techniques above.
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Pass Variables by Reference in Javascript
...ou can pass-by-value a reference to an object) and then have a function modify the object contents:
function alterObject(obj) {
obj.foo = "goodbye";
}
var myObj = { foo: "hello world" };
alterObject(myObj);
alert(myObj.foo); // "goodbye" instead of "hello world"
You can iterate over the prop...
How do I copy a version of a single file from one git branch to another?
... And I think there is no big chance of getting it in git restore (but who know ;)). This redirection issues are basically Powershell problem, not sure if there is any other shell that have problem with it. I usually go back to "git bash" or even "cmd" where I need to use "git show with redirection"...
How do I pass the value (not the reference) of a JS variable to a function? [duplicate]
...change_selection(index);
});
})(i);
}
EDIT, 2013:
These are now commonly referred to as an IIFE
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java.net.ConnectException: Connection refused
...d a lot more information to be able to help you. (For one thing, we don't know what firewall you have...)
– Jon Skeet
Jan 19 '18 at 14:58
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Extract elements of list at odd positions
...licing. Usually it is in the following form:
some_list[start:stop:step]
If we omitted start, the default (0) would be used. So the first element (at position 0, because the indexes are 0-based) would be selected. In this case the second element will be selected.
Because the second element is omi...
How to fix HTTP 404 on Github Pages?
...e and it worked.
git commit --allow-empty -m "Trigger rebuild"
git push
If this doesn't work, as @Hendrikto pointed out in the comments, check out the Github status page and make sure GitHub Pages are operational.
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