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What's the “big idea” behind compojure routes?
I'm new to Clojure and have been using Compojure to write a basic web application. I'm hitting a wall with Compojure's defroutes syntax, though, and I think I need to understand both the "how" and the "why" behind it all.
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Which terminal command to get just IP address and nothing else?
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It says that -i and -I are both illegal options
– Mason
Dec 16 '11 at 3:08
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Limit file format when using ?
...I'd like to know if there is a solution. I'd like to keep solely to HTML and JavaScript; no Flash please.
11 Answers
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How to select the first element with a specific attribute using XPath
...n 17 '09 at 10:48
Jonathan FinglandJonathan Fingland
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How to compare two floating point numbers in Bash?
...) )); then
…
fi
Explanation
Piping through the basic calculator command bc returns either 1 or 0.
The option -l is equivalent to --mathlib; it loads the standard math library.
Enclosing the whole expression between double parenthesis (( )) will translate these values to respectively true or...
What's the difference between detaching a Fragment and removing it?
In the Android docs for a FragmentTransaction I noticed two very similar methods: detach and remove . The descriptions over there don't seem to provide much insight about when to use each, and from what I can tell they appear to be the same.
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Disable browser's back button
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Do not disable expected browser behaviour.
Make your pages handle the possibility of users going back a page or two; don't try to cripple their software.
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Is it possible to use jQuery .on and hover?
...after the initial page load. I'm currently using .bind with mouseover and mouseout .
10 Answers
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Difference between VARCHAR and TEXT in MySQL [duplicate]
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VARCHAR(M)
variable max size of M characters
M needs to be between 1 and 65535
takes 1 + c bytes (for M ≤ 255) or 2 + c (for 256 ≤ M ≤ 65535) bytes of disk space where c is the length of the stored string
can be part of an index
More Details
TEXT has a fixed max size of 2¹⁶-1 = 655...
What is the 'pythonic' equivalent to the 'fold' function from functional programming?
...u can sometimes use some combination of reduce (from the functools module) and the operator module, e.g.:
def product(xs):
return reduce(operator.mul, xs, 1)
Be aware that reduce is actually a foldl, in Haskell terms. There is no special syntax to perform folds, there's no builtin foldr, and ...