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Java recursive Fibonacci sequence
... two. So, you wrote a recursive algorithm.
So,
fibonacci(5) = fibonacci(4) + fibonacci(3)
fibonacci(3) = fibonacci(2) + fibonacci(1)
fibonacci(4) = fibonacci(3) + fibonacci(2)
fibonacci(2) = fibonacci(1) + fibonacci(0)
Now you already know fibonacci(1)==1 and fibonacci(0) == 0. So, you can s...
Zip lists in Python
...amine the length of the first element:
In [3]: result = zip(a, b, c)
In [4]: len(result[0])
Out[4]: 3
Of course, this won't work if the lists were empty to start with.
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Accessing outside variable using anonymous function as params
...
XaerxessXaerxess
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Query for array elements inside JSON type
...ed answer:
Query for element of array in JSON column
jsonb in Postgres 9.4+
Use the equivalent jsonb_array_elements().
Better yet, use the new "contains" operator @> (best in combination with a matching GIN index on the expression data->'objects'):
CREATE INDEX reports_data_gin_idx ON report...
How to toggle a boolean?
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964
bool = !bool;
This holds true in most languages.
...
Removing packages installed with go get
...der $GOPATH/pkg/<architecture>, for example: $GOPATH/pkg/windows_amd64.
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How to set host_key_checking=false in ansible inventory file?
...
Due to the fact that I answered this in 2014, I have updated my answer to account for more recent versions of ansible.
Yes, you can do it at the host/inventory level (Which became possible on newer ansible versions) or global level:
inventory:
Add the following.
a...
Handling Touch Event in UILabel and hooking it up to an IBAction
...
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Parse string to date with moment.js
I want to parse the following string with moment.js 2014-02-27T10:00:00 and output
day month year (14 march 2014)
I have been reading the docs but without success
http://momentjs.com/docs/#/parsing/now/
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On delete cascade with doctrine2
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417
There are two kinds of cascades in Doctrine:
1) ORM level - uses cascade={"remove"} in the as...