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Sorting an array of objects in Ruby by object attribute?
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I recommend using sort_by instead:
objects.sort_by {|obj| obj.attribute}
Especially if attribute may be calculated.
Or a more concise approach:
objects.sort_by(&:attribute)
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The differences between .build, .create, and .create! and when should they be used?
...< 3.x
The most important part, however, is that these methods can be called through an association (has_many, etc.) to automatically link the two models.
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How to use putExtra() and getExtra() for string data
...een.this, SecondScreen.class);
String strName = null;
i.putExtra("STRING_I_NEED", strName);
Then, to retrieve the value try something like:
String newString;
if (savedInstanceState == null) {
Bundle extras = getIntent().getExtras();
if(extras == null) {
newString= null;
} e...
How comment a JSP expression?
How can I comment a JSP expression like: <%= map.size() %>
7 Answers
7
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Tomcat VS Jetty [closed]
... This does not look very true for me, Tomcat also runs out of box.
– Audrius Meskauskas
Feb 9 '13 at 19:26
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What is the pythonic way to unpack tuples? [duplicate]
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Generally, you can use the func(*tuple) syntax. You can even pass a part of the tuple, which seems like what you're trying to do here:
t = (2010, 10, 2, 11, 4, 0, 2, 41, 0)
dt = datetime.datetime(*t[0:7])
This is called unpacking a tuple, and can be used for other it...
Call js-function using JQuery timer
..., 10000);
window.setInterval
Calls a function repeatedly, with a
fixed time delay between each call to
that function.
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facet label font size [duplicate]
...data = mpg) +
facet_grid(. ~ manufacturer) +
theme(strip.text.x = element_text(size = 8, colour = "orange", angle = 90))
See also this question: How can I manipulate the strip text of facet plots in ggplot2?
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How do I remove the horizontal scrollbar in a div?
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overflow-x: hidden;
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Run automatically program on startup under linux ubuntu [closed]
I'd need a program to be run every time I startup my ubuntu linux. So I'd need to add it to my startup programs list. Just one problem: I'd need to do it via terminal.
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