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How do I convert a float number to a whole number in JavaScript?
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var intvalue = Math.floor( floatvalue );
var intvalue = Math.ceil( floatvalue );
var intvalue = Math.round( floatvalue );
// `Math.trunc` was added in ECMAScript 6
var intvalue = Math.trunc( floatvalue );
Math object reference
Examples
Posi...
Empty set literal?
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No, there's no literal syntax for the empty set. You have to write set().
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Python serialization - Why pickle?
I understood that Python pickling is a way to 'store' a Python Object in a way that does respect Object programming - different from an output written in txt file or DB.
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How to iterate through two lists in parallel?
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Python 3
for f, b in zip(foo, bar):
print(f, b)
zip stops when the shorter of foo or bar stops.
In Python 3, zip
returns an iterator of tuples, like itertools.izip in Python2. To get a list
of tuples, use list(zip(foo, bar)). A...
OS X Terminal Colors [closed]
I'm new to OS X, having just gotten a Mac after working with Ubuntu Linux for some time. Among the many things I'm trying to figure out is the absence of colors in my terminal window - like the ones that are shown (on Linux) when running ls -la or git status ...
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What is “Orthogonality”?
What does "orthogonality" mean when talking about programming languages?
16 Answers
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What is recursion and when should I use it?
...o come up regularly on mailing lists and online discussions is the merits (or lack thereof) of doing a Computer Science Degree. An argument that seems to come up time and again for the negative party is that they have been coding for some number of years and they have never used recursion.
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Converting from a string to boolean in Python?
... expect to accept as representing true, so you can do this:
s == 'True'
Or to checks against a whole bunch of values:
s.lower() in ['true', '1', 't', 'y', 'yes', 'yeah', 'yup', 'certainly', 'uh-huh']
Be cautious when using the following:
>>> bool("foo")
True
>>> bool("")
Fal...
Removing an element from an Array (Java) [duplicate]
...yUtils.
array = ArrayUtils.removeElement(array, element)
commons.apache.org library:Javadocs
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When to use f:viewAction / preRenderView versus PostConstruct?
When should one use the f:viewAction or preRenderView event to initialize data for a page versus using the @PostConstruct annotation? Is the rationale to use one or the other based on the type of scope of the backing bean e.g. If the backing bean is @RequestScoped , then would the choice of u...