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Difference between method and function in Scala
...returns from a method. For example:
scala> val f = () => { return "test" }
<console>:4: error: return outside method definition
val f = () => { return "test" }
^
Returning from a function defined in a method does a non-local return:
scala> def f: ...
The object 'DF__*' is dependent on column '*' - Changing int to double
...special script(DropConstraint) to remove it without knowing it's name (was tested at EF 6.1.3):
public override void Up()
{
DropConstraint();
AlterColumn("dbo.MyTable", "Rating", c => c.Double(nullable: false));
}
private void DropConstraint()
{
Sql(@"DECLARE @var0 nvarchar(128)...
Android: Difference between onInterceptTouchEvent and dispatchTouchEvent?
...t the event (by calling child.dispatchTouchEvent). This is basically a hit testing algorithm where you figure out which child view's bounding rectangle contains the touch point coordinates.
But before it can dispatch the event to the appropriate child view, the parent can spy and/or intercept the e...
How to set default values in Rails?
...
Beware this does NOT work on Rails 4.2.x (not tested on later versions). as change_column can be quite "structuring", the reverse operation cannot be deduced. If you're not sure, just test it by running db:migrate and db:rollback right after. Accepted answer as the same ...
GUI not working after rewriting to MVC
...el, which has a variety of fireTable*Changed/Updated/etc methods that will alert all of its TableModelListener observers of mods to the model.
One option you have is to add a listener type to your Model class, and then notify your registered observers of any mods to the state of your model. Your...
How to Display blob (.pdf) in an AngularJS app
...) {
$scope.downloadPdf = function () {
var fileName = "test.pdf";
var a = document.createElement("a");
document.body.appendChild(a);
a.style = "display: none";
xxxxServicePDF.downloadPdf().then(function (result) {
va...
Converting a Java Keystore into PEM Format
...keytool
keytool -exportcert -alias selfsigned -keypass password -keystore test-user.jks -rfc -file test-user.pem
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How to solve “Could not establish trust relationship for the SSL/TLS secure channel with authority”
...h etc).
at least you can circumvent problems during development when using test certificates.
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Regex empty string or email
...
This will match the following email test.test@test. This one is better I think ^$|^[^\s@]+@[^\s@]+\.[^\s@]+$ as it will accept emails like test@test.se
– dont_trust_me
Dec 1 '17 at 9:39
...
How to implement __iter__(self) for a container object (Python)
...ethod (generator object):
here is a Dummy example of a generator :
class Test(object):
def __init__(self, data):
self.data = data
def next(self):
if not self.data:
raise StopIteration
return self.data.pop()
def __iter__(self):
return self
...