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test a file upload using rspec - rails
...args to the helper, rather than args for the post itself. E.g., I had post order_documents_path @order, document: file instead of post order_documents_path(@order), document: file.
– soupdog
Mar 16 '16 at 0:50
...
How to determine if binary tree is balanced?
...ion cost. You spend a lot of time doing unnecessary tree rearrangements in order to attain a level of balance that in practice makes little difference. Who cares if sometimes it takes forty branches to get to the farthest leaf in a million-node imperfectly-balanced tree when it could in theory take ...
Do you need break in switch when return is used?
...break, the return stops execution of the function.
(for reference: http://php.net/manual/en/function.return.php says:
If called from within a function, the return() statement immediately ends execution of the current function
)
...
How to print a string in fixed width?
...lt;5}'.format('ss', 'sss') 'Second sss and first ss ' so you can reorder or even output the same variable many times in a single output string.
– mightypile
Dec 23 '13 at 17:59
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How to check if all of the following items are in a list?
...'s not really that confusing if you recall the inclusion defines a partial order on any set of sets. It's actually slightly confusing that <= has the meaning it does for sequences: one might expect it to mean 'is a subsequence` of rather than lexicographical ordering.
– aaro...
From an array of objects, extract value of a property as array
...ence _.map(), also allow you to provide a dot-separated string or array in order to access sub-properties:
var objArray = [
{
someProperty: { aNumber: 5 }
},
{
someProperty: { aNumber: 2 }
},
{
someProperty: { aNumber: 9 }
}
];
var result = _.map(objA...
What do *args and **kwargs mean? [duplicate]
...f func3(*positional_args, **keyword_args):
#It is an error to switch the order ie. def func3(**keyword_args, *positional_args):
print 'func3:'
print positional_args
print keyword_args
func(a='apple',b='banana')
func(c='candle')
func2('apple','banana')#It is an error to do func2(a='apple',b=...
Use of #pragma in C
...Hello from thread 1
Hello from thread 2
Hello from thread 3
Note that the order of output can vary on different machines.
now let me tell you what #pragma did...
it tells the OS to run the some block of code on 4 threads
this is just one of many many applications you can do with the little #pra...
Filtering for empty or NULL names in a queryset
... @Bobble that would depend on the database implementation -- ordering is delegated to the databse
– wpercy
Jan 24 '17 at 22:43
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Find unique rows in numpy.array
...
Note that if you want unique rows ignoring order of values in the row, you can sort the original array in the columns direct first: original_array.sort(axis=1)
– mangecoeur
Mar 2 at 11:59
...