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Javascript Shorthand for getElementById
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@patrick dw I like that. Especially with the wealth of valid variable names out there :)
– Fox Wilson
Jun 18 '11 at 20:56
4
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How to get an enum value from a string value in Java?
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@treesAreEverywhere More specifically, those methods are generated (or synthesized) by the compiler. The actual enum Blah {...} definition shouldn't try to declare its own values nor valuesOf. It's like how you can write "AnyTypeName.class" even though you...
O(nlogn) Algorithm - Find three evenly spaced ones within binary string
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Finally! Following up leads in sdcvvc's answer, we have it: the O(n log n) algorithm for the problem! It is simple too, after you understand it. Those who guessed FFT were right.
The problem: we are given a binary string S of l...
Is “argv[0] = name-of-executable” an accepted standard or just a common convention?
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Guesswork (even educated guesswork) is fun but you really need to go to the standards documents to be sure. For example, ISO C11 states (my emphasis):
If the value of argc is greater than zero, the string pointed to by argv[0] represents the program name; argv[0][0] shall b...
(this == null) in C#!
...in sematic checks) in the compiler: it should NOT be possible. You are not allowed to write : base(CheckNull()) if CheckNull is not static, and alike you should not be able to inline an instance-bound lambda.
– quetzalcoatl
Aug 14 '12 at 0:29
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How to replace all dots in a string using JavaScript
I want to replace all the occurrences of a dot( . ) in a JavaScript string
15 Answers
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How do I save and restore multiple variables in python?
...icense" for more information.
>>> from klepto.archives import file_archive
>>> db = file_archive('foo.txt')
>>> db['1'] = 1
>>> db['max'] = max
>>> squared = lambda x: x**2
>>> db['squared'] = squared
>>> def add(x,y):
... return x+y
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nonlocal keyword in Python 2.x
...nswer by Elias Zamaria, but contrary to that answer does handle multiple calls of the outer function correctly. The "variable" inner.y is local to the current call of outer. Only it isn't a variable, since that is forbidden, but an object attribute (the object being the function inner itself). This...
What's wrong with overridable method calls in constructors?
...ohibit it:
There are a few more restrictions that a class must obey to allow inheritance. Constructors must not invoke overridable methods, directly or indirectly. If you violate this rule, program failure will result. The superclass constructor runs before the subclass constructor, so the overr...
Rotating a two-dimensional array in Python
...2]]
This list is passed into zip() using argument unpacking, so the zip call ends up being the equivalent of this:
zip([3, 4],
[1, 2])
# ^ ^----column 2
# |-------column 1
# returns [(3, 1), (4, 2)], which is a original rotated clockwise
Hopefully the comments make it clear what zip ...