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Selecting last element in JavaScript array [duplicate]
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13 Answers
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How do you downgrade rubygems?
I have rubygems 1.3.1 installed but I want to go back to 1.2.0. What's the command to downgrade rubygems?
6 Answers
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How to JSON serialize sets?
...owing that it can handle lists, dicts, and sets:
>>> data = [1,2,3, set(['knights', 'who', 'say', 'ni']), {'key':'value'}, Decimal('3.14')]
>>> j = dumps(data, cls=PythonObjectEncoder)
>>> loads(j, object_hook=as_python_object)
[1, 2, 3, set(['knights', 'say', 'who', 'n...
Python data structure sort list alphabetically
...ut[12]: ['constitute', 'Whim', 'Stem', 'Sedge', 'Intrigue', 'Eflux']
In [13]: sorted(lst, key=str.lower, reverse=True)
Out[13]: ['Whim', 'Stem', 'Sedge', 'Intrigue', 'Eflux', 'constitute']
Please note: If you work with Python 3, then str is the correct data type for every string that contains hum...
How to split a sequence into two pieces by predicate?
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By using partition method:
scala> List(1,2,3,4).partition(x => x % 2 == 0)
res0: (List[Int], List[Int]) = (List(2, 4),List(1, 3))
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Find the version of an installed npm package
... cli-color@0.1.6
│ └── es5-ext@0.7.1
├── coffee-script@1.3.3
├── less@1.3.0
├─┬ sentry@0.1.2
│ ├── file@0.2.1
│ └── underscore@1.3.3
└── uglify-js@1.2.6
You can also add --depth=0 argument to list installed packages without their dependencies...
Concatenate two slices in Go
I'm trying to combine the slice [1, 2] and the slice [3, 4] . How can I do this in Go?
7 Answers
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How to solve PHP error 'Notice: Array to string conversion in…'
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answered Nov 16 '13 at 10:43
jadkik94jadkik94
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What is the difference between Numpy's array() and asarray() functions?
...ume a is an ndarray, and m is a matrix, and they both have a dtype of float32:
np.array(a) and np.array(m) will copy both, because that's the default behavior.
np.array(a, copy=False) and np.array(m, copy=False) will copy m but not a, because m is not an ndarray.
np.array(a, copy=False, subok=True...