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How to clone a case class instance and change just one field in Scala?
Let's say I have a case class that represents personas, people on different social networks. Instances of that class are fully immutable, and are held in immutable collections, to be eventually modified by an Akka actor.
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sqlalchemy flush() and get inserted id?
...r here lies in one or more of the following:
The details of your mapping
If there are any odd quirks of the backend in use (such as, SQLite doesn't generate integer values for a composite primary key)
What the emitted SQL says when you turn on echo
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console.log javascript [Function]
...
If it's a user defined function you can use:
console.log(callback.toString());
Otherwise you'll just get something like [native code] since built in functions are not written in JavaScript.
Example:
function x(){}
// Pr...
SQL Server reports 'Invalid column name', but the column is present and the query works through mana
...ct to SQL Server (something like userid.PerfDiag).
When you have an unqualified reference to a schema object (such as a table) — one not qualified by schema name — the object reference must be resolved. Name resolution occurs by searching in the following sequence for an object of the appropria...
Concatenating two lists - difference between '+=' and extend()
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The only difference on a bytecode level is that the .extend way involves a function call, which is slightly more expensive in Python than the INPLACE_ADD.
It's really nothing you should be worrying about, unless you're performing this...
Background color not showing in print preview
...for printing can often be tricky. Several things can be done to avoid the difficulties you are having. First, separate all your print CSS from your screen CSS. This is done via the @media print and @media screen.
Often times just setting up some extra @media print CSS is not enough because you stil...
Bower and devDependencies vs dependencies
...ds as root
See 'bower help <command>' for more information on a specific command.
and further, bower help install yields (see latest source):
Usage:
bower install [<options>]
bower install <endpoint> [<endpoint> ..] [<options>]
Options:
-F, --force-la...
How do I write unencoded Json to my View using Razor?
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What can i do if i want some encoded text in my objects properties? \,{\"UrlPart\":\"TjcolklFX5c\",\"Title\":\"When Mama Isn\u0027t Home\"},{\" For example. This will break beacause js thinks the ' is escaping the native string decalr...
Click event doesn't work on dynamically generated elements [duplicate]
...lt;/button>
The above works for those using jQuery version 1.7+. If you're using an older version, refer to the previous answer below.
Previous Answer:
Try using live():
$("button").click(function(){
$("h2").html("<p class='test'>click me</p>")
});
$(".test").live...
Heroku error: “Permission denied (public key)”
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Also try ssh-keygen -t rsa -C "your_email@youremail.com" if still having the error, to create another file.pub and use that one in the recommended command in this answer
– Tom Roggero
Oct 23 '12 at 4:07
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