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How do you sort an array on multiple columns?
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edited Jan 23 '15 at 12:32
answered May 6 '10 at 20:31
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Should I impose a maximum length on passwords?
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edited Feb 8 '17 at 14:08
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answered Sep 19 '08 at 1...
Why do people hate SQL cursors so much? [closed]
...to avoid having to use a cursor due to the overhead and inconvenience, but it looks like there's some serious cursor-phobia-mania going on where people are going to great lengths to avoid having to use one.
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How do I lock the orientation to portrait mode in a iPhone Web Application?
...uilding a iPhone Web Application and want to lock the orientation to portrait mode. is this possible? Are there any web-kit extensions to do this?
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405 method not allowed Web API
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You are POSTing from the client:
await client.PostAsJsonAsync("api/products", product);
not PUTing.
Your Web API method accepts only PUT requests.
So:
await client.PutAsJsonAsync("api/products", product);
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sed command with -i option failing on Mac, but works on Linux
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The command (note the lack of space between -i and '' and the -e to make it work on new versions of Mac and on GNU):
sed -i'.original' -e 's/old_link/new_link/g' *
Create 2 backup files like:
File1.txt.original
File2.cfg.original
There is no portable way to avoid making backup files because ...
Android: Generate random color on click?
...nd.nextInt(256));
view.setBackgroundColor(color);
Though in your case it seems that you want to create a new drawable and assign it to your view. What is actually the drawable in your case? Is it an image, shape, fill...
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What does ||= (or-equals) mean in Ruby?
...ads on the Ruby mailing-list that discuss this issue.
Here's one: The definitive list of ||= (OR Equal) threads and pages
If you really want to know what is going on, take a look at Section 11.4.2.3 "Abbreviated assignments" of the Ruby Language Draft Specification.
As a first approximation,
a ||= b...
Unpacking, extended unpacking and nested extended unpacking
..., but I decided to opt for completeness.
Once you know a few basic rules, it's not hard to generalize them. I'll do my best to explain with a few examples. Since you're talking about evaluating these "by hand," I'll suggest some simple substitution rules. Basically, you might find it easier to unde...
Add a UIView above all, even the navigation bar
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edited Mar 22 '19 at 8:37
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