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Django Passing Custom Form Parameters to Formset
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I would use functools.partial and functools.wraps:
from functools import partial, wraps
from django.forms.formsets import formset_factory
ServiceFormSet = formset_factory(wraps(ServiceForm)(partial(ServiceForm, affiliate=request.affiliate)), extra=3)
I think this is the cl...
Determining type of an object in ruby
...erm in the Ruby world, is to call object.class.
Since classes can inherit from other classes, if you want to determine if an object is "of a particular type" you might call object.is_a?(ClassName) to see if object is of type ClassName or derived from it.
Normally type checking is not done in Ruby,...
In a javascript array, how do I get the last 5 elements, excluding the first element?
...ind having to load a huge javascript minified file if your trying to do it from your browser.
_.slice(_.rest(arr), -5)
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What algorithm gives suggestions in a spell checker?
...ncountered in the Ternary Search Tree, calculate its Levensthein Distance from the wrongly spelled word.
If Levensthein Distance <= 3, store the word in a Priority Queue.
If two words have same edit distance, the one with higher frequency is grater.
Print the top 10 items from Priority Queue.
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How can I add the new “Floating Action Button” between two widgets/layouts
...gative margin, half the size of the FAB including shadow
Example adapted from shamanland implementation, use whatever FAB you wish. Assume FAB is 64dp high including shadow:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/andr...
How to change value of object which is inside an array using JavaScript or jQuery?
The code below comes from jQuery UI Autocomplete:
23 Answers
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How to add months to a date in JavaScript? [duplicate]
....06.2019:
var newDate = new Date(date.setMonth(date.getMonth()+8));
Old
From here:
var jan312009 = new Date(2009, 0, 31);
var eightMonthsFromJan312009 = jan312009.setMonth(jan312009.getMonth()+8);
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Are there any cases when it's preferable to use a plain old Thread object instead of one of the newe
...use in many cases those are more appropriate as they shield the programmer from needlessly reinventing the wheel, doing stupid mistakes and the like, that does not mean that the Thread class is obsolete. It is still used by the abstractions named above and you would still need it if you need fine-gr...
How exactly does tail recursion work?
...eturn address of the function making the tail call, instead of the address from which the tail call was made.
– Steve Jessop
Mar 20 '13 at 9:59
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Designing function f(f(n)) == -n
...³¹) is actually the easier case, as we showed these two are disconnected from the rest. The other case we need to consider is that f(0)=0, but f(x)=-2³¹ for some x≠0, x≠-2³¹. In that case, f(-2³¹)=f(f(x))=-x (note -x can't be -2³¹, because no such x exists). Further let f(-x)=y. Then f...