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Is Ruby pass by reference or by value?
... Ruby is pass-by-value. No ifs. No buts. No exceptions. If you want to know whether Ruby (or any other language) is pass-by-reference or pass-by-value, just try it out: def foo(bar) bar = 'reference' end; baz = 'value'; foo(baz); puts "Ruby is pass-by-#{baz}".
– Jörg W Mitt...
Unusual shape of a textarea?
....
Click the 'Enable' link within that
section.
Click the 'Relaunch Now' button at the bottom of the
browser window.
from: http://html.adobe.com/webplatform/enable/
.container {
overflow: hidden;
shape-inside: polygon(200.67px 198.00px, 35.33px 198.47px, 34.67px 362.47px...
Choice between vector::resize() and vector::reserve()
... seconds. Then I refactored the code using pre-allocation with .reserve(), now it takes 3 seconds. Just putting a .reserve(100000) in the beginning of the code saved 27 seconds.
– deniz
Oct 12 '13 at 7:25
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Reference assignment operator in PHP, =&
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It's two different operators. = is assignment as you probably know. And & means the variable should be accessed by reference rather than by value.
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Bare asterisk in function arguments?
...o", 3,5)
>>> test_args_kwargs(*args)
arg1: two
arg2: 3
arg3: 5
# now with **kwargs:
>>> kwargs = {"arg3": 3, "arg2": "two","arg1":5}
>>> test_args_kwargs(**kwargs)
arg1: 5
arg2: two
arg3: 3
So *args allows you to dynamically build a list of arguments that will be taken ...
What Content-Type value should I send for my XML sitemap?
...ation/xml the character encoding can be specified in the document itself.
Now a rule of thumb on the internet is: “Be strict with the output but be tolerant with the input.” That means make sure to meet the standards as much as possible when delivering data over the internet. But build in some ...
Nodejs Event Loop
...
How did you know these things, can you point me to the source?
– Suraj Jain
Mar 31 at 19:24
add a comment
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Convert columns to string in Pandas
...dability
This is self-explanatory ;-)
OK, so should I stop using it right now?
...No. As of writing this answer (version 1.1), there are no performance benefits but the docs expect future enhancements to significantly improve performance and reduce memory usage for "string" columns as opposed to ob...
Use images instead of radio buttons
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I have this working for a set of 3 smiley faces. Now I need to have multiple rows on one form, each with their own set of smiley faces. My problem is that when one row is changed, they all change. Any ideas what part needs to be modified to accomplish this?
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What are the relationships between Any, AnyVal, AnyRef, Object and how do they map when used in Java
...s has changed to abstract class AnyVal extends Any with NotNull, and it is now possible to extend AnyVal with the new value classes feature, e.g.: class MyValue(val u: Int) extends AnyVal.
– ebruchez
Sep 28 '12 at 22:15
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