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Is it safe to assume a GUID will always be unique?
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Yes, you can. Since GUIDs are 128 bits long, there is admittedly a minute possibility of a clash—but the word "minute" is nowhere near strong enough. There are so many GUIDs that if you generate several trillion of them randomly, you're still more likely t...
How do you specify that a class property is an integer?
...milarly named JavaScript primitive type and represents double-precision 64-bit format IEEE 754 floating point values..."
I think int is a bug in Visual Studio intelliSense. The correct is number.
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How can I use swift in Terminal?
...d to quit, type Ctrl+d.
– arve0
Apr 10 '18 at 12:00
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Eclipse menus don't show up after upgrading to Ubuntu 13.10
.... I have experienced the same issue as you have described, Ubuntu 13.10 64-bit Unity, Eclipse 4.3.0, menus were not visible.
So I realise that it might be helpful if I clarify myself, the desktop shortcut file for Eclipse would contain something like this:
[Desktop Entry]
Version=4.3.0
Name=Eclips...
How to find and return a duplicate value in array
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@chris Great answer, but I think you can do a bit better with this: arr.detect.with_index { |e, idx| idx != arr.rindex(e) }. Using with_index should remove the necessity for the first index search.
– ki4jnq
Sep 15 '16 at 12:57
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Compiling Java 7 code via Maven
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109
try using a newer version of the maven compiler plugin:
<plugin>
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Convert HTML to PDF in .NET
...ms embedding it within your C# code,
especially while switching between 32bit and 64bit builds of your
project. Had to try several workarounds including conditional
project building etc. etc. just to avoid "invalid format exceptions"
on different machines.
If you manage your own virtual machine its...
MySQL: Transactions vs Locking Tables
...heir transactions (take out the $20 you're paying, and the $30 they're screwing you over with), and now both code paths have two different balances: $80 and $70. Depending on which ones finishes last, you'll end up with either of those two balances in your account, instead of the $50 you should have...
Why wasn't PyPy included in standard Python?
...might be that according to PyPy site, it currently runs only on 32- and 64-bit Intel x86 architecture, while CPython runs on other platforms as well. This is probably due to platform-specific speed enhancements in PyPy. While speed is a good thing, people often want language implementations to be as...
Absolute vs relative URLs
... it is relative.
images/example.png
This is also a relative URL although a bit different than the previous one. This URL is relative to the current path. What this means is that it will resolve to different paths depending on where you are in the site.
For example when you are on the page http://you...