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The JPA hashCode() / equals() dilemma
...eptively hard to implement correctly when
objects are persisted to a database. However, the problems stem
entirely from allowing objects to exist without an id before they are
saved. We can solve these problems by taking the responsibility of
assigning object IDs away from object-relational ...
Accessing Session Using ASP.NET Web API
...ative);
}
}
This solution has the added bonus that we can fetch the base URL in javascript for making the AJAX calls:
_Layout.cshtml
<body>
@RenderBody()
<script type="text/javascript">
var apiBaseUrl = '@Url.Content(ProjectNameSpace.WebApiConfig.UrlPrefixRelati...
How can I shuffle the lines of a text file on the Unix command line or in a shell script?
... to head.
A performance comparison is made.
POSIX-compliant function based on awk, sort, and cut, adapted from the OP's own answer:
shuf() { awk 'BEGIN {srand(); OFMT="%.17f"} {print rand(), $0}' "$@" |
sort -k1,1n | cut -d ' ' -f2-; }
Perl-based function - adapted from Moo...
Distributed sequence number generation?
...d service, i.e. you make a network call to get a unique ID;
which produces 64 bit unique IDs that are ordered by generation time;
and the service is highly scalable and (potentially) highly available; each instance can generate many thousand IDs per second, and you can run multiple instances on your...
Why does SIGPIPE exist?
...HELPING ICE
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How do I install Maven with Yum?
...ved this error: repos.fedorapeople.org/repos/dchen/apache-maven/epel-6/x86_64/…: [Errno 14] HTTPS Error 404 - Not Found Don't know if the repo is temporarily down or permanently down.
– anon58192932
Feb 29 '16 at 21:00
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Convert HH:MM:SS string to seconds only in javascript
... Math.pow is very slow and can be avoided as shown in other answers based on reduce
– Alejadro Xalabarder
May 3 at 13:57
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show 1 mor...
Compare double to zero using epsilon
...
Assuming 64-bit IEEE double, there is a 52-bit mantissa and 11-bit exponent. Let's break it to bits:
1.0000 00000000 00000000 00000000 00000000 00000000 00000000 × 2^0 = 1
The smallest representable number greater than 1:
1.0000 ...
Can my enums have friendly names? [duplicate]
... @Roy - that's not always true, sometimes (precisely when is based on an implementation detail) the C# compiler will emit a Dictionary lookup instead, see: stackoverflow.com/questions/3366376/…
– John Rasch
Mar 2 '11 at 20:23
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How to have an automatic timestamp in SQLite?
I have an SQLite database, version 3 and I am using C# to create an application that uses this database.
7 Answers
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