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Difference between knockout View Models declared as object literals vs functions
... ko.observable(first);
this.last = ko.observable(last);
this.full = ko.computed(function() {
return this.first() + " " + this.last();
}, this);
};
So, your computed observable can be bound to the appropriate value of this, even if called from a different scope.
With an object literal, ...
Get the current git hash in a Python script
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The git describe command is a good way of creating a human-presentable "version number" of the code. From the examples in the documentation:
With something like git.git current tree, I get:
[torvalds@g5 git]$ git describe parent
v1.0.4-14-g2...
How do you redirect to a page using the POST verb?
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While this answer is basically correct, it is not complete. See Jason Bunting answer below for a much better workaround.
– Adrian Grigore
Jan 10 '11 at 13:07
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Shading a kernel density plot between two points.
... ... that have been in demo(graphics) since before the dawn on time so one comes across every now and then. Same idea for NBER regression shading etc.
– Dirk Eddelbuettel
Aug 16 '10 at 17:19
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Programmatically find the number of cores on a machine
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Unique fields that allow nulls in Django
...eness checks since ticket #9039 was fixed, see:
http://code.djangoproject.com/ticket/9039
The issue here is that the normalized "blank" value for a form CharField is an empty string, not None. So if you leave the field blank, you get an empty string, not NULL, stored in the DB. Empty strings are ...
UINavigationController without navigation bar?
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Django: multiple models in one template using forms [closed]
...d and b_valid and c_valid:
a = formA.save()
b = formB.save(commit=False)
c = formC.save(commit=False)
b.foreignkeytoA = a
b.save()
c.foreignkeytoB = b
c.save()
Here are the docs for custom validation.
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DirectX SDK (June 2010) Installation Problems: Error Code S1023
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