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Default parameters with C++ constructors [closed]
...-argument constructor:
class Vehicle {
public:
Vehicle(int wheels, std::string name = "Mini");
};
Vehicle x = 5; // this compiles just fine... did you really want it to?
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Plotting two variables as lines using ggplot2 on the same graph
...equires a simple ggplot() call to produce the plot you wanted with all the extras (one reason why higher-level plotting packages like lattice and ggplot2 are so useful):
require(ggplot2)
p <- ggplot(stacked, aes(Dates, value, colour = variable))
p + geom_line()
I'll leave it to you to tidy up ...
Setting table row height
...
You can remove some extra spacing as well if you place a border-collapse: collapse; CSS statement on your table.
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Idiomatic way to convert an InputStream to a String in Scala
...a handy function that I've used in Java for converting an InputStream to a String. Here is a direct translation to Scala:
...
Why doesn't indexOf work on an array IE8?
....
I just found out that the $.inArray is only works with "Array", not with String.
That's why this function will not working in IE8!
The jQuery API make confusion
The $.inArray() method is similar to JavaScript's native .indexOf()
method in that it returns -1 when it doesn't find a match. If ...
Join strings with a delimiter only if strings are not null or empty
... I'm trying to find a simple way to concatenate only non-null or non-empty strings.
7 Answers
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Setup RSpec to test a gem (not Rails)
...end
context '#lick_things' do
it 'should return the dog\'s name in a string' do
@dog.lick_things.should include 'woofer!:'
end
end
end
Open up Terminal and run rspec:
~/awesome_gem $ rspec
..
Finished in 0.56 seconds
2 examples, 0 failures
If you want some .rspec options love...
Performing a Stress Test on Web Application?
...You don't have to do any advanced regex matching (like JMeter requires) to extract out cookies, .NET session state, Ajax request parameters, etc. Since you're using real browsers, they just do what they are supposed to do.
Sorry to blatantly pitch a commercial product, but hopefully the concept is ...
What's the best way to distribute Java applications? [closed]
...s is or zip it with possible dependencies (or let the program download the extra dependencies from the net on startup). It's also free, as in beer and speech, which may (or may not) be a good thing.
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Gzip versus minify
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You get 14% extra savings. This agrees with Steve Souders's results too. In his book "High Performance Websites", he has a section on gzip vs minification. (Chap10, p74) He goes from 85K (original), 68K (only JSMin), 23K (only gzip), ...