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How can I get `find` to ignore .svn directories?
... set in an integer) is faster than comparing the filename (equivalent to a string comparison, which is O(n)), putting -type d before -name .svn is theoretically more efficient. However, it is usually insignificant except if you have a very very big directory tree.
– Siu Ching P...
Given an array of numbers, return array of products of all other numbers (no division)
...= pj ;
}
return prods;
}
public static void main(String[] args) {
System.out.println(
Arrays.toString(products(1, 2, 3, 4, 5))
); // prints "[120, 60, 40, 30, 24]"
}
}
The loop invariants are pi = nums[0] * nums[1] *.. nums[i-1] and pj = nu...
Handling the window closing event with WPF / MVVM Light Toolkit
...cept complexity by using a more elaborate pattern with more indirection (5 extra lines of XAML plus Command pattern).
The "zero code-behind" mantra is not the goal in itself, the point is to decouple ViewModel from the View. Even when the event is bound in code-behind of the View, the ViewModel do...
What is the most efficient way to deep clone an object in JavaScript?
...nly supported by Firefox . I've done things like obj = JSON.parse(JSON.stringify(o)); but question the efficiency. I've also seen recursive copying functions with various flaws.
I'm surprised no canonical solution exists.
...
How to break a line of chained methods in Python?
...Go through a list of conditionals to mine from your complex query form (or string-based deductions about what the user is looking for), then just explode the dictionary into the filter.
share
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impr...
Aliases in Windows command prompt
...gedit and go to HKEY_CURRENT_USER\Software\Microsoft\Command Processor
Add String Value entry with the name AutoRun and the full path of your .bat/.cmd file.
For example, %USERPROFILE%\alias.cmd, replacing the initial segment of the path with %USERPROFILE% is useful for syncing among multiple mach...
How can I clear scrollback buffer in Tmux?
... it only works on local shells, because it sends the tmux clear-history as string to be written to the active pane. I've adapted it to: bind-key E send-keys "C-k" \; send-keys "C-u" \; send-keys "clear" \; send-keys "Enter" \; run-shell "sleep .3s; tmux clear-history"
– Santi ...
Rename Pandas DataFrame Index
...from a DataFrame, this attribute is set to the column name.
We can pass a string name to the rename method to change it
s.rename('FOOOOOD')
state color
Jane NY blue Steak
Nick TX green Lamb
Aaron FL red Mango
Name: FOOOOOD, dtype: object
DataFrames do not h...
Designing function f(f(n)) == -n
...oof of why such a function can't exist, for all numbers, if it doesn't use extra information(except 32bits of int):
We must have f(0) = 0. (Proof: Suppose f(0) = x. Then f(x) = f(f(0)) = -0 = 0. Now, -x = f(f(x)) = f(0) = x, which means that x = 0.)
Further, for any x and y, suppose f(x) = y. We w...
Pythonic way to find maximum value and its index in a list?
...r the slowest method, and it gives the wrong answer, if the array contains strings instead of floats or integers.
– tommy.carstensen
Sep 8 '13 at 23:47
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