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How to copy Java Collections list
...'d have to admit.
List<String> a = new ArrayList<>(a);
a.add("foo");
b.add("bar");
List<String> b = new ArrayList<>(a); // shallow copy 'a'
// the following will all hold
assert a.get(0) == b.get(0);
assert a.get(1) == b.get(1);
assert a.equals(b);
assert a != b; // 'a' is...
Delete multiple objects in django
...rhaps performs validation (permissions), and then finally runs that filter(foo).delete() method.
– Yuji 'Tomita' Tomita
Feb 4 '12 at 19:41
1
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Initializing a list to a known number of elements in Python [duplicate]
... This way of initializing a Python array is evil: a=[[]]*2; a[0].append('foo'); now inspect a[1], and you will be shocked. In contrast a=[[] for k in range(2)] works fine.
– Joachim W
Aug 12 '13 at 21:40
...
Adding and removing style attribute from div with jquery
...t, yes you can. Just use an object literal on the .css() function. Like $('foo').css({'height':'30px','width':'50px'});
– Richard Neil Ilagan
Mar 22 '11 at 17:13
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How do I keep two side-by-side divs the same height?
...
<div id="left-column">
<ul>
<li>Foo</li>
<li>Bar</li>
<li>Baz</li>
</ul>
</div>
<div id="right-column">
Lorem ipsum
</div>
</div>
</bo...
Printing all global variables/local variables?
...ames will be difference. Consider you have a static variable y in function foo and another y in bar. To distinguish them, a different name must be assigned to the two y's.
– kennytm
Jun 7 '11 at 7:41
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How to use if - else structure in a batch file?
...
@bvj No, no, you got it all wrong. It should be do foo and do bar.
– yyny
Apr 3 '16 at 19:41
W...
Real world example about how to use property feature in python?
...
"""I'm the 'x' property."""
if self._x is None:
self._x = Foo()
return self._x
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Why is it slower to iterate over a small string than a small list?
...e can actually rule out Tim Peter's 10-times-upvoted answer!
>>> foo = iterable[123]
>>> iterable[36] is foo
True
These are not new objects!
But this is worth mentioning: indexing costs. The difference will likely be in the indexing, so remove the iteration and just index:
>...
How to copy yanked text to VI command prompt
...r directly onto the command line. E.g.:
:%s/<ctl-r><ctl-w>/foo/g
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