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How to clone a case class instance and change just one field in Scala?
...It turns out it is just a few lines of code in the scalaz library:
/** http://stackoverflow.com/a/5597750/329496 */
case class Lens[A, B](get: A => B, set: (A, B) => A) extends ((A) => B) with Immutable {
def apply(whole: A): B = get(whole)
def mod(a: A, f: B => B) = set(a...
test a file upload using rspec - rails
...ing a photo. I set up the uploaded file as an instance of ActionDispatch::Http::UploadedFile, as follows:
test "should create photo" do
setup_file_upload
assert_difference('Photo.count') do
post :create, :photo => @photo.attributes
end
assert_redirected_to photo_path(assigns(:photo)...
jQuery find events handlers registered with an object
...
blog.jquery.com/2011/11/08/building-a-slimmer-jquery .data(“events”): jQuery stores its event-related data in a data object named (wait for it) events on each element. This is an internal data structure so in 1.8 this will be removed...
What is a “context bound” in Scala?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Handling optional parameters in javascript
...second parameter is an Array or function.
This can give some suggestions:
http://www.planetpdf.com/developer/article.asp?ContentID=testing_for_object_types_in_ja
I am not certain if this is work or homework, so I don't want to give you the answer at the moment, but the typeof will help you determi...
ASP.NET MVC - Attaching an entity of type 'MODELNAME' failed because another entity of the same type
... safe from user modifying sensitive data.
Here is extended explanation:
http://www.stevefenton.co.uk/Content/Blog/Date/201303/Blog/Why-You-Never-Expose-Your-Domain-Model-As-Your-MVC-Model/
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PHP validation/regex for URL
...nto issues, but I'm sure it's not exhaustive:
$text = preg_replace(
'#((https?|ftp)://(\S*?\.\S*?))([\s)\[\]{},;"\':<]|\.\s|$)#i',
"'<a href=\"$1\" target=\"_blank\">$3</a>$4'",
$text
);
Most of the random junk at the end is to deal with situations like http://domain.com. in ...
Format a datetime into a string with milliseconds
...pec='milliseconds')
Output:
'2019-05-10 09:08:53.155'
More info here: https://docs.python.org/3/library/datetime.html#datetime.datetime.isoformat
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Ways to circumvent the same-origin policy
... subsequent origin checks. For example, assume a script in the document at http://store.company.com/dir/other.html executes the following statement:
document.domain = "company.com";
After that statement executes, the page would pass the origin check with http://company.com/dir/page.html. However,...
Java and SQLite [closed]
...e wiki lists some more wrappers:
Java wrapper (around a SWIG interface): http://tk-software.home.comcast.net/
A good tutorial to use JDBC driver for SQLite. (it works at least !) http://www.ci.uchicago.edu/wiki/bin/view/VDS/VDSDevelopment/UsingSQLite
Cross-platform JDBC driver which uses embedded ...