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Swift class introspection & generics
...requires an '@required' initializer
Y().me()
^
<REPL>:3:7: note: selected implicit initializer with type '()'
class X {
^
It took me a while to figure out what this means… turns out it wants the class to have a @required init()
class X {
func me() {
println("asdf"...
File Upload without Form
... this tutorial, here a very basic way to do that:
$('your_trigger_element_selector').on('click', function(){
var data = new FormData();
data.append('input_file_name', $('your_file_input_selector').prop('files')[0]);
// append other variables to data if you want: data.append('field_n...
asp.net mvc: why is Html.CheckBox generating an additional hidden input
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If checkbox is not selected, form field is not submitted. That is why there is always false value in hidden field. If you leave checkbox unchecked, form will still have value from hidden field. That is how ASP.NET MVC handles checkbox values.
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How do I prevent an Android device from going to sleep programmatically?
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This should be the selected answer. Simple, clean and as Android intended. Thank you.
– Lior Iluz
Jan 21 '14 at 5:44
2
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Visual Studio 2012 - Intellisense sometimes disappearing / broken
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I have the same problem. For me, selecting the end of the very last line of the file, and then saving the file (ctrl-s) fixes the problem.
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Filter dataframe rows if value in column is in a set list of values [duplicate]
...id 7
9 1980-01-10 9 Jones 4
There are multiple ways of selecting or slicing the data.
Using .isin
The most obvious is the .isin feature. You can create a mask that gives you a series of True/False statements, which can be applied to a dataframe like this:
mask = df['STK_ID'].isin...
How to export and import a .sql file from command line with options? [duplicate]
...mysql_location -u $u_name -p $db_name < $sql_file
else
echo "please select a valid command"
fi
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Working copy XXX locked and cleanup failed in SVN
...toiseSVN then Press Clean up...
Clean up dialog would appear automatically
Select Clean up working copy status, Break locks, Fix time stamps, Vacuum pristine copies, Refresh shell overlays, Include externals
Pres OK
You did your job successfully.
Check the screen shots for your reference.
First ...
Easiest way to copy a single file from host to Vagrant guest?
...the port should be taken from the UI of the Oracle VM VirtualBox Manager - select vm on the left , settings , network , port forwarding
– Yordan Georgiev
May 9 '15 at 6:59
1
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How to get the nth element of a python list or a default if not available
...It invloves creating 3 temporary lists and accessing 2 indices in order to select an item, though.
– Joachim Jablon
Apr 3 '14 at 9:48
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